Bald eagles, besides being majestic and graceful and standing for freedom and all that, have a pretty cool trick: they can scoop fish straight out of the water. Flying low, they extend their talons and grab the fish from below the surface, carrying it home for a triumphant feast. Now, scientists at the University of Pennsylvania in Philadelphia have made a drone that can imitate this same feat. Watch it in action below:
Perhaps no creature packs a more intimidating punch — especially relative to its size — than the peacock mantis shrimp. It feasts on snails, crabs and other mollusks and crustaceans by smashing through their shells with its front hammer-like claws, delivering 500 Newtons of force. This is powerful enough to punch through aquarium glass.
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.