Over on sciencealert.com, "This new robot eats water pollution and produces electricity as it swims." Read more here.
Also, on smithsonianmag.com, "RoboBees Can Fly and Swim. What's Next? Laser Vision." Find out more here.
Finally, on popularmechanics.com, check out "Tiny Robotic Tentacles Can Lasso an Ant" here.