A new species of dolphin was discovered by Australian zoologists off the coast of Melbourne, after they realized the 150 or so porpoises that were previously thought to be bottlenose dolphins actually differed significantly in skull shape and DNA. That, kids, is why you should always double-check your homework. Or, you know, dolphin skull shape. Same thing.
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.