A snake. A shark. They got pregnant with no male involved. In fact, scientists are finding more and more species that can reproduce on their own. What’s going on?Note: We mention that a stingray named Charlotte might be pregnant via parthenogenesis. It has since been announced that she was not pregnant, but ill.For show transcripts, go to vox.com/unxtranscriptsFor more, go to vox.com/unexplainableAnd please email us! unexplainable@vox.comWe read every email.Support Unexplainable by making a financial contribution to Vox: vox.com/givepodcastsPlease take a second to help us learn more about you! vox.com/podcastsurveyLearn more about your ad choices. Visit podcastchoices.com/adchoices