Soft robots are coming a long way, with strong yet stretchy bodies that can survive all kinds of assaults. But it would be even better if they didn't have to survive smashing attempts at all, instead blending into their environments so neither animals nor people would even know they were there. Researchers at Harvard designed new chameleon-bots that can do exactly that.
This little chameleon is one of four miniature lizards identified in Madagascar, adding to our growing list of amazingly teeny animals. The one on the match in this picture is a juvenile, but even the adults max out at 30 millimeters. They're the smallest lizards in the world, and some of the smallest vertebrates found to date.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.