Episode Transcript
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0:09
Hi, I'm Chris Morgan. You're
0:11
listening to The Wild on KUOW.
0:14
I'm a wildlife ecologist and host of The
0:16
Wild. I hope you're having a great weekend so
0:18
far and maybe getting out in nature.
0:31
Last week we asked you all to send me some
0:33
of your wildlife encounter stories.
0:36
Thanks if you wrote in. Here's a couple of them I wanted
0:38
to share. We got an email from Barb
0:40
in Seattle. She says she had an encounter
0:43
years ago. She was a bridge
0:45
tender, a person who operates and
0:47
maintains bridges in Florida at the
0:49
time and she's still doing that now. And
0:52
she's on the bridge checking out the navigation
0:54
lights when she hears the sound of a blue
0:56
heron. Like, quack, quack.
0:59
And she's heard that sound loads of times.
1:01
But then a third round of squawking
1:04
happened. Barb was then struck
1:06
with a jet stream of water. Turns
1:08
out it wasn't
1:09
a heron, it was a dolphin.
1:12
Barb did some digging and learned a real gem
1:14
of information. Dolphins are renowned
1:17
vocal mimics. This one had learned
1:19
how to sound like a heron.
1:21
Amazing.
1:22
Thanks, Barb, for sharing that one. Here's
1:25
another email. Reinhardt writes
1:27
that he was camping with his wife and two dogs
1:29
in the Canadian Rockies and one morning their
1:31
two dogs start going off. They're trembling
1:33
and barking at something right outside the tent. And
1:36
he says, my wife says, look outside, see
1:38
what's there. Oh, very brave. See
1:41
what's outside the tent. So he pops his
1:43
head out of the tent. Camera and
1:45
bear spray, he says to his wife. There's
1:48
a massive black bear next to the
1:50
tent. He doesn't get the prettiest pictures.
1:53
But if he had, he might have realized
1:55
that he was really taking a picture of a 700 pound
1:59
grizzly bear.
2:00
A couple of park rangers filled
2:02
him in later on that day on a
2:04
grizzly bear that loves to rummage through the
2:06
bushes around the campsite for berries.
2:09
That grizzly visited them almost every day
2:11
of their camping trip, took a seat,
2:14
took a few sniffs and then wandered off.
2:17
I love this Reynard, thank you for sharing
2:19
it because all we ever seem to hear are
2:22
the headlines about bear attacks and
2:24
negative encounters. We never really hear headlines
2:26
about peaceful interactions
2:28
with people. Just there to feed on huckleberries
2:31
this grizzly bear was. So keep them
2:33
coming folks, it's great to hear your stories.
2:35
You can email them to us at thewild at
2:37
kow.org. Okay
2:40
let's talk about today. We're heading to the
2:42
water twice this hour. And
2:45
first up, beavers.
2:48
I've got to say, brace yourselves for
2:50
a string of surprising facts
2:53
and stories about these unlikely heroes. This
2:55
is one of our most popular episodes
2:57
of the wild. And it's timely too,
3:00
you know, we like to be topical. About
3:02
now, in the fall, beavers are
3:04
caching food for the winter. They
3:06
jam branches into the mud
3:09
under the water to eat over
3:11
the winter, even when the pond is frozen
3:13
solid like a lovely winter
3:16
larder. So they're very busy
3:18
right now. You can see the wood chips around
3:20
the forest, there's something really cool
3:22
about finding them when you're poking around in the
3:25
woods or by a wetland. Little
3:27
cookie cutter sized chips with
3:29
these straight teeth marks across
3:32
them from a fresh chew. The beaver's
3:34
teeth wear down more
3:36
easily on the back surface than
3:38
on the front surface. So as they bite
3:40
down with that beaver overbite,
3:43
they sharpen their teeth. I
3:45
think it's really tantalizing to know they're there
3:48
gnawing away and at the same time
3:50
making an ecosystem for other creatures.
3:53
We start this episode in a city
3:56
park in Seattle.
3:58
Ah,
4:01
it's so beautiful! It's like a mini
4:03
white Lincoln log, or
4:05
a large Lincoln log, I guess, just floating in the middle of the
4:07
pond. Completely stripped of bark,
4:09
so it looks white. And then these fresh
4:11
tumour, because that looks pretty fresh, doesn't it? Yeah, it looks
4:14
really fresh. I'm standing in a pond
4:16
in Magnuson Park in Seattle, holding
4:19
a small log. The
4:21
leftovers from somebody's lunch. That
4:23
somebody is a creature that's almost comically
4:26
cute. When I ask my friends what
4:28
comes to mind when they think of a beaver, they
4:31
all smiled. Fucktooth
4:34
Mescots. Fucky the beaver.
4:37
Leave it to beaver. Justin beaver.
4:40
Whatever that means. I love the
4:42
far-side cartoon of a beaver. He's standing
4:44
in front of his fridge with his hands on his hips, and the
4:46
only thing in the fridge is wood and twigs.
4:50
But there is far more to this little creature
4:52
than just a pop culture caricature.
4:55
The mighty beaver has altered landscapes,
4:58
affected economies, and even changed
5:01
the history of the world. And this
5:03
is their story. The
5:29
reason I've come to Magnuson Park is to see
5:31
beavers in action. I
5:33
meet up with Ben Dittbrenner. Ben? Chris. Hey
5:36
Chris. Nice to meet you. Good to meet you too. Yeah.
5:39
You caught me getting tied
5:41
up in knots with my waders here. Beavers
5:43
have come back to this city park over the last
5:45
few years. Now I've been around beavers
5:48
in some wild, out-of-the-way places, but
5:50
these urban street-smart beavers
5:52
are a different matter. I want to know
5:54
more about them in this unlikely
5:57
place. So we've got to be
5:59
prepared to get wet.
5:59
Can't help but already
6:02
feel inadequate, you know? Like the
6:04
beavers are out there in this freezing cold water without
6:06
waders on. What's my problem?
6:09
Ben is working on his PhD at the University
6:12
of Washington and is also the executive director
6:14
of Beavers Northwest. He tells me city
6:17
planners created what was supposed to be a few
6:19
ephemeral wetlands at Magnuson Park
6:21
to help support some wildlife. The
6:24
idea was that they would provide wet habitat
6:26
in the spring and then dry up in the summer. But
6:29
the beavers had a different plan.
6:31
And then about five years
6:33
ago beavers moved in from Lake
6:35
Washington. They had been all over Lake Washington
6:38
and as soon as permanent water
6:40
was really established here, they found
6:42
it pretty quickly.
6:43
The beavers moved in and started
6:46
building dams, which is what
6:48
beavers do.
6:49
You see, beavers can't stand
6:52
the sound of running water. It drives
6:54
them crazy and they have to stop
6:56
it. It's a nagging, innate thing because
6:59
that sound of trickling water spells
7:02
failure for their engineering efforts. It's
7:04
something that they have to fix. People
7:06
have done some really cool studies where they've even
7:08
taken radio with the sound
7:10
of running water and put it in a field. And
7:13
beaver will come out and build a
7:15
little circular dam over the top
7:18
of the radio. So
7:20
they are really motivated
7:22
by that sound of running water. It's amazing.
7:25
I want to do that today. It's like
7:27
beaver OCD. They can't help themselves. It
7:30
reminds me of that beaver from Disney's Lady
7:33
and the Tramp. You realize every
7:35
second 70 centimeters of water
7:37
is wasted over that spillway?
7:39
Yeah, but got to get this log
7:42
moving, sonny. Got to get it moving. And
7:45
I saw that obsession firsthand. Ben
7:48
shows us a drain in the middle of a pond. The
7:50
drain makes sure that the road that's nearby doesn't
7:53
get flooded out. The park
7:55
manager put a fence around that drain
7:57
to keep the beavers off of it.
7:59
that would actually stop them. So the
8:02
fence around the drain that
8:04
drains water out the pond that we're standing in right
8:06
here and the sound of that draining
8:09
forced the beavers to come and fix it and
8:12
they couldn't get into the fence to fix it so they've
8:14
built all around this fence and it's
8:17
thick with this silty mud here. Greeds
8:22
and grasses and whoa! Almost
8:26
went then. It is an amazing
8:28
accomplishment. We wade through the water
8:30
picking our way through the vegetation and mud.
8:33
I mean, looking across at this pond and it very much
8:35
feels like a naturally created pond
8:37
that doesn't feel like we're in a man-made
8:40
park in Seattle, you know, and that's because the beavers
8:42
have created this pond and it's full of wildlife, it's
8:45
full of the ducks all over it. You know,
8:47
you can imagine in the summer, in the spring, it must be packed with
8:49
insects and songbirds and
8:51
part
8:51
of the ecosystem these guys are creating.
8:54
We get to the main dam, the heart
8:56
of the operation. We're standing on this, what looks
8:58
like a big muddy mound, but there's
9:00
a slider that goes across it from the pond
9:02
to my right that's higher than the pond to the left.
9:05
And the beaver has got this slide, which is basically
9:08
a little beaver highway going from one pond to another
9:10
to help him maintain this. And
9:12
it's worn away the mud, so you can see all
9:15
these different layers of sticks underneath
9:17
it that are exposed.
9:20
Then it looks like a dam. You
9:22
can see that there's a construction under this muddy
9:24
mound.
9:25
It's amazing.
9:26
So Chris, if you look at the
9:28
way that the beavers have positioned the logs
9:31
on this dam, you can see they kind of would do it differently
9:33
than how we would do it. So we probably, if we
9:36
were going to come out for the day and be
9:38
beavers and build the dam, we would probably take these sticks
9:40
and put them on the channel perpendicular
9:42
to the flow. But beavers don't do that. They're
9:45
approaching it a little bit differently. They're taking the sticks
9:47
and they're pushing them into the mud so
9:49
that they're facing upstream. And even as the
9:52
sticks get old and brittle, the force
9:54
of the water and the mud just further
9:56
pushes those sticks down into the
9:58
substrate. makes the dam
10:01
even potentially stronger. Picture
10:05
yourself standing by a creek or
10:07
a small river flowing through a forest
10:10
or a glade of trees. You
10:15
see a pretty view, but
10:17
the beaver sees an opportunity.
10:20
The beaver needs that pond. It's
10:23
where he builds his lodge, where the whole beaver
10:25
family lives, in fact. So
10:27
he builds the lodge in the pond where it's
10:29
safe from predators, and the
10:32
pond also allows him to swim. They're
10:34
way better in the water than they are on land.
10:37
So that way they can swim away from predators
10:39
and also towards food, the
10:42
trees and the shrubs that are now in
10:44
and around the water in the flooded area. It
10:48
becomes a pantry right on
10:50
his watery doorstep.
10:52
When the beaver runs out of trees
10:54
in his immediate pantry, then he starts
10:56
to dig channels, literally like excavating
10:58
them out of the ground. Like fingers of
11:01
water that extend from the pond so
11:03
that he can swim to new forage further
11:05
out from the main pond. He'll even float
11:08
logs and sticks down those channels and
11:11
pretty cool. Some of them to eat and
11:14
some of them to reinforce the dam, and
11:16
then some of them to pile on top of the lodge to
11:18
shore it up. So these three components,
11:20
the dam,
11:21
the lodge and the channels,
11:23
are the beaver's world. And it's really interesting
11:26
to look for all three of those features when you're
11:28
out there near a beaver pond. It sort of brings
11:30
it all together and makes total sense. The
11:33
primary motivations of the beavers is to be safe
11:35
and to have sufficient food. So they're
11:38
building those dams and increasing
11:40
the pond area to achieve
11:42
both of those goals. The beavers pretty
11:44
much took over this part of the park and
11:47
have changed the hydrology of this entire
11:49
site. The ephemeral
11:51
ponds became permanent. And
11:54
park planners have been really open-minded
11:57
about the changes that they've been seeing and instead
11:59
of trying to...
11:59
to trap the beavers out and actively
12:02
fight them. They've been working with the beavers and
12:05
adapting to what the beavers have been doing. So it's
12:07
a really cool kind of story of how
12:10
people and beavers are working kind
12:13
of together to try to find some
12:16
middle ground that works for nature
12:19
and for the needs of the park
12:21
and everyone else. It's like the beavers
12:23
are on the planning committee, right? They're part of the process,
12:26
that's all. Yeah, I think that they put themselves
12:28
in the planning committee and people
12:31
realise there's no way they get those beavers off the planning
12:33
committee. If you can't beat them, join them kind of thing.
12:35
Yeah, exactly. It is a little bit that way, hey, sounds like.
12:39
But beavers are not always welcomed
12:40
by everyone. Because as
12:42
much as they create habitat, they can
12:45
disrupt it too, for humans. They
12:47
can flood agricultural land by damming,
12:50
which isn't good. Or on the other
12:52
extreme, they can deprive land of
12:54
water by blocking the flow of that water.
12:56
It's
13:02
complicated. But there are still
13:04
a lot of people who are pretty passionate
13:06
about beavers,
13:07
like Ben Goldfarb. There's so much
13:09
to say about sniffing beaver butts, it's really kind of remarkable.
13:12
Ben is an environmental reporter and author
13:14
of the book Eager,
13:16
a surprising secret life of beavers
13:18
and why they matter. And before
13:21
you jump to conclusions about Ben's enthusiasm
13:23
over beaver butts, a little context here,
13:26
it's impossible to look at a beaver and
13:28
know what sex it is. They
13:30
have internal genitalia. It makes
13:33
sense, swimming between all those snags.
13:37
So researchers determine the sex of a
13:39
beaver, not by sight, but
13:41
by smell.
13:42
What you can do is basically find
13:45
the anal gland, one of the
13:47
scent organs, and squirt out
13:49
a bit of scent secretion and sniff it. And if
13:51
it smells like motor oil, it's
13:54
a male. And if it smells like old cheese,
13:56
it's a female.
13:59
hopefully never have the opportunity, but if you do,
14:02
now you know. It's good to know these
14:04
things. I don't know how I would have coped without it, you know. Thanks
14:06
for that background. I love that. That's
14:09
news you can use.
14:10
So the anal gland is called the castorsac,
14:13
and the liquidy substance it secretes is
14:15
called castorium. It's even featured
14:17
in their scientific name, Castor
14:19
canadensis. It's this very
14:22
strong-smelling kind of musky, but
14:24
with hints of vanilla. It's a very unusual aroma.
14:27
And for a long time, castorium is actually used as
14:30
a flavor additive in things
14:32
like fruit sodas and vanilla
14:34
ice cream. It's still used to this day
14:37
in some perfumes. It's
14:39
a pretty unique scent. I've
14:41
never eaten vanilla ice cream again in my life.
14:44
But Ben's real fascination with beavers comes
14:46
from their incredible ecological
14:49
contributions. We think about them as
14:51
being kind of these fun little rodents
14:54
and don't always give them credit for
14:56
being these incredibly dramatic
14:59
ecosystem engineers and architects.
15:02
But these unlikely
15:03
ecosystem engineers
15:05
are benefiting way more than just themselves
15:07
with all this busy behavior.
15:09
Other species benefit too. Even though
15:11
they're expanding their own habitat, they're also inadvertently
15:14
creating habitat for all of these other creatures as
15:16
well, right? I know that on this planet,
15:18
water is life, and there are so many animals
15:21
from ducks to frogs
15:23
to fish to moose that
15:25
are dependent on the kinds of wet
15:27
habitats that beavers are creating. So
15:30
they're building their own shelter, but in the process,
15:32
they're creating shelter for this vast ecosystem
15:34
as well.
15:35
Goldfarb goes into this in his book. He
15:37
argues that this kind of habitat engineering
15:40
is what makes beavers a keystone
15:42
species. To understand the importance
15:44
of a keystone species, picture a stone
15:47
arch. The keystone is the block at
15:49
the top of the arch that holds the entire
15:52
arch together.
15:53
And if you take out that block, the whole arch
15:55
comes crashing to the ground. A keystone
15:58
species plays a similar role in any case. ecosystem
16:01
and beavers are playing that same role as well.
16:03
They're also a species without which ecosystems
16:06
collapse because again, they're building
16:08
all of this wet habitat for
16:11
literally thousands of different species that
16:14
are depending on them for
16:18
ponds and wetlands and wet meadows. So
16:21
that's what a keystone species is, a species
16:23
that disproportionately holds
16:25
up an ecosystem and to me there's no question
16:28
that beavers are doing that. Beavers
16:29
create a nourishing wetland system
16:32
that help all kinds of species from songbirds
16:35
to mink to otters.
16:37
They even help orcas.
16:40
Their ponds are really good habitat
16:42
for young salmon. Salmon that eventually
16:44
find their way down into the sea and
16:46
some of them into the mouths of orcas.
16:49
Ben
16:49
Goldfarb says you could consider
16:51
beavers unlikely heroes. Aside
16:53
from humans, they're really in many ways,
16:55
you know, our continent's most influential
16:58
animal and you know again, they're these kind of chunky
17:00
balls of fat and fur, but they're doing
17:03
a lot of work. And this had been happening for thousands
17:05
of years like a natural system
17:07
that worked very well with the beaver at the
17:09
heart of it.
17:11
Native Americans knew this long ago. They
17:14
called the beaver the sacred center
17:16
of the earth because of their role
17:18
in making habitat for other animals and plants.
17:22
But then we arrived, Europeans,
17:25
and we wanted beavers in a bad way.
17:28
I'll tell you why after the break.
17:38
When extreme weather comes your way, what
17:40
do you do? I'm Erin Baldessari,
17:43
host of Sold Out, Rethinking Housing
17:45
in America, a KQED podcast
17:48
all about how the warming climate is threatening
17:50
the places and people we love. But
17:54
this is not a story about the apocalypse. This
17:57
is a story about solutions and
17:59
the ways we can all come together to adapt
18:02
and face the future. Our
18:04
new season just dropped. Check
18:06
out Sold Out, rethinking housing in America,
18:09
wherever you get your podcasts.
18:12
This second part of the story talks
18:14
about beaver hunting, how they became
18:16
a massive commodity around the world. But
18:19
thankfully times have changed. Fast
18:21
forward to today, and I just heard
18:23
that a baby beaver was born in the wild
18:26
in London for the first time
18:28
in 400 years. It's
18:31
yet to be announced if it's a female or
18:33
male. If you're listening to our episode,
18:35
you'll understand why. Anyway,
18:38
what fantastic news. I see
18:40
headlines about beavers all the time these
18:42
days, how they're being encouraged back in various
18:45
parts of the world. Some covert
18:47
conservationists are even doing it illegally,
18:49
sort of dropping them off by a creek in the dead
18:51
of the night. And it's because these creatures
18:54
can help us solve so many issues like
18:56
water storage, climate, habitat
18:59
restoration, rewilding. I
19:01
was deep up in the mountains in the North Cascades
19:03
last weekend tracking wolves, and
19:06
I stopped for lunch at a creek. And
19:09
I could see where that creek began
19:11
up in the ice of the glaciers way up
19:13
high. So I sat there staring
19:16
at that water, thinking it's
19:18
gonna run out. When that ice and that snow has gone,
19:20
it will. It'll run out. That creek
19:22
will run dry. But it also made
19:25
me think about beavers who can help.
19:27
They can help us store the water as
19:30
it tumbles down from the mountain. Okay,
19:33
back to the story. What
19:40
did make beavers so popular
19:42
way back when?
19:46
Hats. Beaver hats
19:49
were the hot fashion item in the 16th to
19:51
18th century in Europe. High
19:53
society, monocles, a
19:55
kind of a status symbol. Kind
19:58
of take the under-fear of the... beaver
20:00
and felt it up and it turns into this really durable,
20:03
pliable, waterproof material that was
20:05
sort of the finest hat making stuff. Beavers
20:10
had almost been hunted to extinction in Europe
20:12
to feed that hat trade and
20:14
America had a plethora of them.
20:20
So much so that beaver pelts became an
20:23
economic driver for early settlers
20:25
here.
20:25
Pilgrims had to pay back debt to those who
20:27
had funded their journey to America and
20:30
they did it by trapping beavers and selling
20:32
their pelts.
20:33
Pelts made the Massachusetts Bay Colony
20:36
financially solvent.
20:38
Then there was the beavers role in
20:40
politics. Yes, politics.
20:43
The Revolutionary War, one of the things that the
20:45
British did to anger the American colonists,
20:48
was deny them access to beaver trapping
20:50
grounds west of the Appalachians. You know, so beavers
20:52
played a role in the American Revolution. The
20:55
Louisiana Purchase, Westwood
20:57
expansion, the market for beaver
20:59
fur was a factor in all these decisions.
21:02
These creatures were helping to shape
21:04
history,
21:06
all while being slowly annihilated.
21:08
These animals are just so
21:10
integral to our own story
21:13
as a nation. Amazingly so, yes. And
21:15
incredible to think that so much of it began with
21:17
a hat fad
21:20
in many ways. I
21:22
mean, it's an insane thought that we could
21:24
have such an impact on a species because of
21:26
a fashion item.
21:28
Yeah, I know it's true, but then you think, I
21:30
mean, that's kind of the story of our relationship with wildlife
21:32
in so many ways. You know, we wiped
21:35
out bison in part because, you know, we wanted to
21:37
use their furs as robes and,
21:39
you know, we eliminated, you know,
21:41
I mean, untold billions of
21:44
songbirds because, you know, we used their plumage
21:46
in hats. You know, it's amazing the extent to which
21:49
fashion has basically driven our relationship
21:51
with the environment for centuries.
21:54
best
22:00
estimates put the beaver population at 400 million.
22:05
That's a lot of hats. That's more than
22:07
the number of people in the USA
22:09
and Canada today. But by 1900 or
22:12
so, after a massive continent-wide
22:15
trapping effort, there were only 100,000 left.
22:18
And in Europe, they were down to around 1,200
22:21
beavers in the wild. The
22:24
loss of these animals has literally changed
22:26
the geography of North America.
22:28
My own view of what a stream
22:30
should look like was in many ways inaccurate,
22:33
because I too had omitted beavers
22:35
from this historic picture. You
22:38
read old explorers and trappers accounts
22:41
of crossing North America before all the beavers
22:43
were eliminated, and places that
22:45
today we associate with desert, like
22:47
much of New Mexico and eastern Wyoming.
22:51
There, explorers encountered marshes
22:54
and wetlands and ponds, and a lot
22:56
of that was beaver influence. This is
22:58
an animal
22:58
that can make a desert into a wetland.
23:01
It's incredible to think that North America's
23:03
landscape used to actually look and feel
23:05
different because of beavers. So much
23:08
so that even today, we don't understand
23:10
what a river actually is supposed to look
23:12
like. But over the last century,
23:15
beaver numbers have started to spring
23:17
back. People started to understand that
23:20
beavers improved biodiversity and
23:22
the health of habitats probably shouldn't
23:24
be blindly exterminated everywhere. And
23:27
it often happens when an animal population comes
23:29
back. There were growing pains
23:32
with the surrounding human community.
23:34
These types of conflicts played out in a very
23:36
unique way in Idaho in 1948. This
23:40
man is carrying beaver live traps. Beaver
23:43
populations were increasing and causing problems with
23:45
local irrigation systems and orchards. He's
23:48
on his way to a beaver pond, where
23:50
he will remove the busy engineers who
23:52
will become too numerous. The
23:55
state's Department of Fish and Wildlife wanted
23:57
to eliminate these human-beaver conflicts.
24:00
So basically decided to live trap a bunch
24:02
of a bunch of beavers and relocate them To
24:05
the to the wilderness which was you know a really
24:07
a really nice idea Live beaver
24:10
for new waters the initial
24:12
challenge was that they tried to move the beavers on
24:14
horseback But the beavers spooked the
24:16
horses and made them hard to manage, you
24:18
know, you can't really blame the horses for not Being
24:21
a big fan of having you know beavers trapped to
24:23
their back So transporting the beavers
24:25
on horseback wasn't going to work So how
24:28
are these biologists going to translocate these
24:30
beavers into the backwards of Idaho?
24:33
Well, this was just after the end of World War
24:35
two and somebody gets an idea There
24:37
are all of these surplus parachutes on hand.
24:40
They've got some airplanes. So, you know, why not try? Tossing
24:43
beavers out of airplanes. Oh, you
24:45
can't make this stuff up. That's just insane Plan
24:50
B parachutes anybody parachutes
24:52
are attached to cargo lines nearly
24:55
ready for that flight back into the mountains
24:57
This one biologist this guy named Elmo heater Designed
25:00
this this special crate that you could strap
25:02
to
25:03
a parachute and then the crate would fall open
25:05
upon impact and the boxes are Stacked
25:07
in rows along the waist of the plane Ten
25:10
boxes to a load 20 beaver
25:12
ready for the flight to mountain Meadows.
25:15
So that year in 1948 they dropped 76 beavers
25:18
out of airplanes and these specially designed
25:21
crates attached to parachute
25:23
the plane makes a careful approach Ready
25:25
for the drop now into the
25:27
air and down they swing down
25:30
to the ground near a stream or a lake
25:33
Unfortunately one little beaver
25:35
somehow got out of the crate midair
25:37
and fell to his death But 75
25:40
of the 76 beavers survived to go
25:42
on to start a family in the wilds of Idaho
25:44
Away from any conflict with humans
25:47
the box opens and a most unusual
25:49
and novel trip ends for mr The
25:52
really remarkable thing was that when they when they flew over
25:54
those same areas the next year They found that beavers
25:57
had actually built dams and
25:59
and logic in all of the places they'd been dropped
26:01
off. So the beavers not only survived
26:03
the initial landing, they actually built
26:06
dams and flourished. Today, there
26:09
are about 15 million beavers in
26:11
North America.
26:12
So from that perspective, it's certainly a wonderful
26:15
story of recovery and conservation.
26:18
But then you consider the fact that historically there
26:20
were likely several hundred million, and
26:23
you realize that we still have an awfully long way to go when
26:25
it comes to returning this species to many of the places
26:27
that it was eliminated from. But it is an
26:29
amazing start. And even in Europe,
26:32
where the whole problem began, you know, with their
26:34
hat fetish, well, even there,
26:36
there are now half a million beavers, thanks
26:38
to some really effective conservation efforts.
26:42
Today, beavers are being looked
26:44
at as a way to help us deal with one of the
26:46
greatest challenges we face on the planet,
26:49
climate change. That's
26:52
because it's all about water. As
26:54
we lose that snowpack, as precipitation
26:56
falls as rain rather than snow, it becomes really
26:59
important that we figure out new strategies
27:01
to capture some of that water, to hold water
27:04
up in the mountains, up in the high country.
27:06
And, you know, hey, here's this nifty little
27:09
rodent capable of creating thousands
27:11
and thousands of reservoirs up
27:13
in the mountains to keep that water on the landscape
27:16
and keep our streams and rivers
27:18
hydrated into the summer
27:20
and fall as it gets hot. So I think that
27:22
idea that beavers could be a water
27:24
storage solution and help us adapt to climate
27:27
change is a really big reason why
27:29
there's so much interest in these animals right now. Ben
27:31
Goldfarb says that these reservoirs also
27:34
create fire breaks on the landscape that
27:36
help slow wildfires. And
27:38
we know how bad those have been in recent years. You
27:41
can actually, in many cases, achieve
27:43
a lot more and certainly do it much
27:45
more cost effectively by letting
27:48
the rodent do the work, as
27:50
many beaver scientists say. You
27:52
know, basically getting out of the way, relocating
27:55
or, you know, restoring these animals
27:57
somehow and essentially letting them...
28:00
build their dams, create ponds and wetlands,
28:02
store water, make amazing wildlife
28:04
habitat, improve water quality.
28:07
They do all of these wonderful things if
28:09
we basically stay out of their way,
28:12
don't kill them, and take
28:15
steps to help them recover. So to me, that's
28:17
the lesson, is more than anything else, we
28:21
humans are so infatuated
28:23
with our own god-like powers, but
28:26
here's a case where we can actually make more progress
28:29
by turning restoration over to
28:31
another species. Back
28:34
at Magnuson Park, standing knee-deep
28:36
in the pond with the other Ben, Ben Dittbrenner,
28:39
I have a new respect for the beaver. The
28:42
landscape of this urban park that they have helped
28:44
build is teeming with wildlife.
28:47
In these wetland systems we see herons,
28:49
and we see all types
28:51
of shorebirds, and then in
28:54
the surrounding areas we see a huge diversity
28:56
of songbirds. And when
28:59
we look at wildlife camera footage
29:01
at night, we see that the area is teeming
29:04
with
29:05
mammals like mink
29:07
and otter and all types of, just
29:10
a huge diversity of mammals. Ben
29:12
Dittbrenner says beavers are a great investment
29:15
for the future. Our allies
29:17
in so many ways. And they're free.
29:20
If we had to come in here and try to replicate what
29:22
beavers were doing, it would be $100,000 easily. Beavers
29:26
come into the system, and they do this
29:28
for free. And when we have big storm
29:30
events and the dams blow out, if
29:33
we were in charge, we probably would never get
29:35
around to fixing those dams. But the beavers come back
29:37
out the next day and start rebuilding.
29:40
They start rebuilding.
29:41
Rebuilding nature. Putting
29:44
back the pieces. It's
29:46
an amazing thought.
29:49
We may never have 400 million beavers
29:51
back in North America, and frankly there isn't
29:53
room for that many of them these days.
29:56
But I do like the idea of just getting
29:58
out of their way and having so many people.
29:59
Some parts of the old place, just the way they are
30:02
supposed to be. Beavers
30:04
on the planning committee of planet Earth.
30:07
Just hold the vanilla ice cream
30:09
please.
30:27
Okay, next as promised, it's
30:29
time to disappear into the
30:32
watery world of the sea lion.
30:34
A bit of behind the scenes. The wild team
30:36
and I were really grappling with this story
30:38
when we produced it. Something was off. I
30:41
don't know. It was missing something.
30:43
Didn't feel different enough. And
30:46
then I said, wait, I know. Let's try and tell
30:48
the story from the sea lion's perspective.
30:51
I love trying to get into the minds of animals
30:53
to see things through their eyes. So
30:56
we did. A couple of years ago, I played this
30:58
story to a small group of people
31:00
on a ship up in the Arctic. I had them all lying
31:03
down on their backs on the deck really
31:05
quietly to focus on being underwater
31:08
like a sea lion. It was great. People
31:10
really enjoyed it. A bit of underwater
31:13
animal meditation. But
31:16
as you'll hear, it's not all roses for
31:18
a sea lion. They live in a complex
31:20
natural world and have to make a living.
31:23
Then you add humans into the mix and things become
31:26
even more tricky for them, including conflicts.
31:29
Part of the story is about dropping explosives
31:31
into the river. You'll hear some of that in
31:34
this episode. This is a protected
31:36
species to sea lion, chasing
31:38
down an endangered species, the
31:40
Chinook salmon. Our story conveys
31:43
some of these complexities. It's an ongoing
31:45
journey, how to manage the various needs.
31:47
But thankfully, a lot of very smart people
31:50
are trying. So it might be your
31:52
only chance in life to stop what you're doing
31:54
for 15 minutes, if you can, maybe even
31:56
close your eyes
31:57
and become a sea lion.
32:05
Picture yourself in an underwater
32:08
world, the
32:10
world of the sea lion, on the west coast
32:12
of North America, where an ecological
32:15
puzzle has become unexpectedly
32:17
complicated. This is a story
32:19
of oceans, rivers, salmon
32:22
and survival. It's also a story
32:24
of bombs, guns and billion
32:27
dollar infrastructures. It's a story
32:29
that's been told before, but not like this.
32:32
Because this is an opportunity to take
32:34
to the water and channel your inner
32:36
sea lion, to find out just what
32:38
it takes to maneuver in an ever changing
32:41
aquatic world when everyone wants
32:43
a piece of the prize.
32:45
Imagine you're a sea lion. You're
32:48
a 900 pound male California
32:50
sea lion, at sea. You're entering
32:53
the prime of life. Five years old,
32:55
eight feet long, bold and brave.
32:58
But a little naive.
32:59
The
33:02
sea
33:02
is your complete comfort zone.
33:05
You've been out here at sea for six straight
33:07
days, away from land. And you're
33:09
hungry. You might even be
33:11
a bit irritable. Cruising
33:14
through the green cairn, twisting
33:16
and turning like underwater
33:19
flight, you follow your nose, whiskers
33:21
feeling their way. You swim through
33:23
a dense shore of smoke. The little
33:25
fish are easy to catch, so you grab two
33:28
of them and guzzle them down. They
33:30
ease the hunger a little bit, for now. A
33:35
few days ago, you were in the place of your
33:37
birth, way down south, the
33:39
Channel Islands of California near Los
33:41
Angeles. You were there
33:44
to breed. And this year, you
33:46
hit your stride as an emerging dominant male.
33:48
You sired eight pups from as many females.
33:52
And that was all a thousand miles ago. And
33:55
now, instinct and your big brain
33:58
and your youthful curiosity have
33:59
driven you north, way north,
34:02
on a migration. Occasionally
34:05
you travel with other males heading north
34:07
to the coastal waters of Washington, Canada
34:11
and even Alaska. You're
34:14
first to seek a powerful
34:16
predator, but you also
34:18
pray. Your flank has scars
34:21
across it from the time you got away from the teeth of an orca
34:23
last year, but nothing will
34:25
stop you from finding what drives you.
34:27
Hade. What's
34:30
suddenly something changes? The
34:36
taste of the waters has
34:38
turned from salty to
34:41
fresh. This
34:43
is the mouth of the Columbia River. It's
34:45
three miles wide right here, where the river
34:47
spills into the Pacific Ocean between the states
34:49
of Oregon and Washington.
34:50
A
34:53
giant silverfish flashes past
34:55
your face. Whoa, it startled
34:57
you, and without even thinking, you bank
35:00
right and
35:00
clap, touching the thrust
35:02
of your enormous flippers. You've
35:05
now entered a different ecosystem, and
35:07
as a sea creature, it's a place you
35:09
knew nothing about. You have no
35:11
idea what's ahead on this river.
35:16
No other river pours more water into
35:18
the Pacific from the North American continent than
35:20
the Columbia River. Other
35:23
giant rivers themselves legendarily
35:25
pour into the Columbia, and
35:27
it's here that a strange chase
35:29
begins. The giant silverfish
35:32
you are chasing is a Chinook Sen, 50
35:35
pounds of determined muscle. No
35:38
wonder they call them kings. And
35:41
this is where your plans to head north
35:44
change. You're
35:46
sleek. Your body drives through
35:48
the water after the fish. You're
35:50
a perfectly tuned underwater version
35:52
of the sea lion most humans don't ever see.
35:55
If anyone can catch that fish, you can.
35:58
But it's not easy. It's a race
36:00
that's evolved over millions of years,
36:03
and the salmon is as good at escaping as you
36:05
are at chasing, even at 25 miles an hour.
36:08
It's an evolutionary arms race.
36:11
The Chinook is the largest salmon in the
36:13
Pacific.
36:14
Their meat is packed with 30,000 delicious
36:17
calories, and they're on a mission too. This
36:20
female salmon, whose tail you're on, she's
36:22
been at sea for four years. But
36:25
her life started in the river,
36:27
as an egg in a small tributary
36:29
of the Columbia River up in the mountains.
36:32
Then as a 12-inch yearling,
36:34
she swam down this very same river
36:36
towards the sea.
36:39
Four years at sea have toughened her, but
36:41
now she's back in fresh water, and
36:44
it's the beginning of the end of a really
36:46
long journey for her. She's heading home,
36:49
back to her birthplace in that mountain
36:51
stream. She has a fight on
36:53
her hands to get there though.
36:57
You find the taste of the fresh water
36:59
strange, but other than
37:01
that, this still feels as big as
37:03
the sea here. It doesn't feel like a river
37:06
at all. But it doesn't even matter.
37:08
You're just following the food, and the food
37:11
is heading upriver, away from the sea,
37:13
and everything you know. You
37:17
push on against the steady flow of the river,
37:19
and it feels unusual to you. It's different
37:21
to the tides you're used to. You
37:24
sense it's worth it.
37:25
Nothing ventured, nothing gained.
37:31
When Lewis and Clark were here in 1805, 35 sea lion generations
37:33
ago, they saw a river very
37:38
different to today's. Native
37:40
American people were living from the riches
37:42
of the water and the land, people
37:44
that gave the mighty Chinook salmon its
37:46
name.
37:48
The place was throbbing with life back
37:50
then.
37:51
Beavers making ponds, bears
37:53
eating berries, huge flocks
37:55
of birds, wolves chasing
37:58
elk.
37:59
In the 1800s, over 10 million
38:02
famine would return to the Columbia River. It's
38:05
closer to 2 million today.
38:07
Because of habitat loss and lower
38:09
water quality, a warming climate.
38:12
And to make matters worse, fewer
38:14
fish have to feed more hungry mouths,
38:17
including the sea lions, whose numbers
38:19
are actually up. Protection
38:21
in the 70s worked for the sea lions. So
38:24
now we have a protected species, the
38:26
sea lion,
38:27
chasing an endangered one,
38:29
the salmon. Your
38:33
race for the salmon continues up the river. Through
38:36
the surface of the water, you see buildings
38:38
on the shore.
38:39
Always curious, you pop your head up
38:41
for a look. There's
38:43
a wooden dock, and it's packed
38:45
with sea lions. There must be 100 or more
38:47
of them. They're
38:50
piled two or even three deep in places.
38:53
They're a social bunch. And
38:55
there are more now than there ever have been. You
38:58
haul out and join them. Time
39:01
for a rest. Conserve some energy.
39:04
But most of these guys won't be as ambitious
39:06
as you. You were born with extra
39:08
drive and extra strength. About 1,600
39:12
sea lions have entered the river, but only
39:15
one in 10 of you will push onwards, a
39:17
long way onwards. Smell
39:22
guides the salmon. She's stopped
39:24
eating since she hit the fresh water. She's
39:26
carrying 15,000 eggs, and
39:29
her only remaining task in life is to
39:31
lay them in the tributary she was born. The
39:34
male salmon are on the same journey to fertilize
39:36
them. So
39:39
her 100% focus is making it
39:41
there, home, which is 200
39:43
miles upstream, a
39:46
journey that will take her about 18 days.
39:53
The trundle of logging trucks vibrates
39:55
through the water, and you can feel it in your
39:57
long whiskers.
39:59
really unfamiliar territory. Human
40:02
dwellings are everywhere, and they seem
40:04
very close. Voices
40:07
carry across the water.
40:10
The river becomes narrower now.
40:12
You're 50 miles from the coast. A
40:15
huge chinook zips by, and right on its
40:17
tail, a massive sea lion, twice
40:19
your size. It's a stellar
40:21
sea lion, an intimidating 2,000 pounds.
40:26
You keep swimming, following the salmon. 70
40:29
miles upriver, 80, 90 miles, and past 100. You're
40:35
feeling quite alone. You've not
40:37
seen another sea lion for a while, and you
40:39
wonder if you'll ever catch a fish.
40:41
The ocean is a long way behind now.
40:44
The water is murky,
40:46
thick with silt. 140
40:48
miles upstream, and
40:50
you start to hear a strange, distant
40:53
rumble. It vibrates
40:55
the entire river.
40:56
And it's getting wet. A
41:00
shadow in the sky. A bald eagle suddenly
41:03
swoops down overhead, scattering a
41:05
dozen noisy gulls that are hovering above. A
41:07
firm salmon remains in the water.
41:10
Then suddenly, there's mayhem. It's
41:13
like the water has turned into a bubbling cordrum.
41:16
The salmon in front of you is totally disoriented
41:18
in
41:18
the front of the water. You're
41:20
a lot of tar on the fish with a huge push
41:22
of your giant flours, but you miss
41:25
another sea lion's speed from nowhere.
41:27
No one's passed you and perhaps the fish.
41:29
And more salmon's
41:31
passed you, and two other sea lions. For every
41:33
salmon, there are several sea lions now. All
41:36
hell has broken loose.
41:38
Then, through the murky water,
41:41
you see something white ahead. As
41:43
you swim closer, it gets bigger and
41:45
bigger. Suddenly, the
41:48
river stops, and you can't
41:50
go any further. A wall.
41:52
A wall has trapped the fish. A
41:56
lot of fish. And they're easy
41:58
prey now.
42:02
Suddenly, the world is good.
42:06
The wall is a dam,
42:09
Bonneville Dam. It was built in
42:11
the 1930s during the Great Depression
42:13
at a cost of 83 million
42:15
dollars. That's about one and a half
42:18
billion dollars today. And the
42:20
Bonneville Dam, it didn't just bring
42:22
electricity, it also brought hope.
42:25
It was built in the form of thousands of jobs to
42:27
fuel a nation that was thirsty
42:29
for good news and growth. A
42:32
rise of human willpower and
42:34
ability, conquering nature, and
42:37
even holding back water,
42:39
including a man-made
42:41
lake, a 50 mile long reservoir,
42:44
taming this mighty river.
42:47
But it's also become
42:49
the focal point for a struggle for survival
42:51
involving humans, and
42:54
you, the
42:55
sea lion. As
42:57
you chase another cornered fish, you
43:00
begin to surface out of the water. You
43:02
see the white concrete wall rise
43:04
to the sky, 200 feet high
43:07
and a thousand feet wide. And
43:09
that's when you hear it. A
43:12
huge explosion booms through the water
43:14
and shakes every fiber of your sea lion
43:16
body. A fish scatter. You're
43:19
dazed and terrified. You've never felt
43:21
anything like this before. In a panic,
43:23
you swim to the surface to figure out what's happening.
43:28
Then you see a
43:29
boat. A boat full
43:31
of humans.
43:35
For the last 146 miles, you've been chasing some. But
43:40
the tables have turned. Oh, you're
43:42
the one being chased. And
43:45
the men on the boat want you out of here. And
43:48
if that takes underwater explosives
43:50
and shotgun bangers, then that's what'll happen.
43:53
These Native American men are the defenders
43:55
of the Chinook.
43:57
Their lifeblood.
43:58
If these fish don't make it up
43:59
stream,
44:00
then their ancient cycle is over. Scaring
44:04
away sea lions like this is legal.
44:07
Some of the more troublesome ones are even euthanized,
44:10
and Native Americans depend on the salmon
44:12
they have for thousands of years. But
44:15
the dam has thrown the ecosystem out
44:17
of work.
44:18
The salmon to get past the dam, they
44:21
have to swim up a series of man-made,
44:23
elevated water pools, a fish ladder.
44:26
But first they have to survive the gauntlet
44:29
of hungry sea lions, up to 300 of them
44:31
during spring, that have learned
44:33
to catch the salmon at the base of the dam. And
44:36
spring the sea lions can eat around 20-40% of
44:38
the Chinook here. Future
44:41
generations of salmon are under threat.
44:45
And Native Americans are doing what they can to protect
44:47
the salmon, and this ancient
44:50
cycle. And
44:53
it's not just people who depend on these fish, but
44:56
countless other species too, from orcas
44:58
to bears. What's most surprising
45:01
is that the salmon are still here at all, the
45:03
odds are against them from the moment they're born. But
45:07
some do make it to the stream of their birth,
45:09
where they will lay their eggs and die,
45:12
her body returning nutrients to
45:14
the water and the forests.
45:17
With some luck, her offspring will
45:19
then head down river, ocean bound,
45:22
for the ancient cycle to begin all over
45:24
again. An
45:27
ancient cycle in a modern human world,
45:30
and a new kind of normal. A
45:33
normal where sometimes the pieces of the puzzle
45:35
don't quite fit like they used to,
45:38
and where nobody was really the winner.
45:42
It's been an experience for you, the sea
45:44
lion, but the explosions are
45:47
all too much, and you're a treat from the
45:49
dam. But at least you caught two salmon,
45:52
and not only that, you learned a lot along
45:54
the way. But the salt
45:56
water is calling you back, and eventually
45:58
home to California.
45:59
all those miles away. This
46:02
is what you do. You survive
46:04
and learn. And you'll most likely
46:07
be back here next year playing
46:09
your role in an ecological puzzle and
46:12
the complicated path of the Chinook.
46:30
Well that's our episode for this
46:32
week. Thank you for
46:35
tuning in.
46:38
I'm
46:41
really enjoying bringing some of our favourite episodes
46:44
along with some updates. And some stories
46:46
from you too. You can find more episodes
46:48
of our podcast The Wild with Chris Morgan
46:51
at KUOW.org, Apple
46:53
Podcasts, Spotify or wherever
46:56
you get your podcasts. We
46:58
promise to take you to wondrous
47:00
places to meet really fascinating wild
47:03
animals and people with stories
47:05
you'll hopefully want to tell your friends. The
47:08
Wild is a production of KUOW in
47:10
Seattle and me, Chris Morgan, with support
47:12
from Wildlife Media. Our producers
47:14
are Matt Martin and Lucy Suchek. Jim
47:17
Gates is our editor. This broadcast
47:19
version is produced by Brandy Fullwood. A
47:21
very special thank you for their kind financial support
47:24
to Jill and Scott Walker, Rose Letwin,
47:26
Ellen Ferguson, Anna Kimball, John
47:28
Taylor, Paul Lister, Bob Yelalee,
47:31
Barbara Stallman, Julian John Hansen
47:34
and Annie Miles. Our production
47:36
team includes Paul Bikess, Juan
47:38
Pablo Tequiza, April Craig, Michaela
47:41
Janossy-Boyle, Tatiana Latre,
47:44
Kara McDermott, Darcy Riggins-Schmidt
47:47
and Brendan Sweeney. Our theme music
47:49
is by Michael Parker. We'll be
47:51
back with more of The Wild next weekend.
47:54
Take care of yourselves and keep your
47:56
nose to the ground when you're out in nature. You
47:58
never know what you might encounter. find and
48:02
keep in touch. Thanks so much for listening.
48:14
This is my voice. It
48:16
can tell you a lot about me and
48:18
I'm not changing it for anyone. In
48:21
NPR's Black Stories, Black Truths,
48:23
you'll find a collection of NPR episodes
48:27
centered on the Black experience. Search
48:30
NPR Black Stories, Black Truths,
48:32
wherever you get podcasts.
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