Prehistoric Fleas Would Probably Eat Your Dog If They Still Existed

Their descendants are happy to just suck blood and pass along parasites to small mammals, but the hugeprehistoric fleas from 165 million years ago were equipped with saw-like projections around their mouth—for penetrating thick dino hides—that would probably make short work of a Chihuahua. » 2/29/12 4:40pm 2/29/12 4:40pm