Xenobots are very tiny robots composed of organic cellular material. According to researchers, the programmable living things are made of frog stem cells. They can swim in fluid, join forces to act collectively and move small objects, which in the future could make them useful for monitoring radioactivity, diseases and pollutants. This week Kristen Meinzer sits down with Josh Bongard, Veinott Professor of Computer Science, University of Vermont, and Michael Levin, distinguished professor, Vannevar Bush Chair at Tufts University, two of the brilliant minds demonstrating advances in robotics. Invesco Distributors, Inc.