Tapeworm eggs found in fossilized poop

Paleontology isn't always about tyrannosaurs and pterodons: sometimes it's quite a lot less glamorous.

Sharks play dead before they're even born

Embryonic sharks, still within the egg, can sense danger and freeze toavoid being detected by predators, say marine scientists at the University of Western Australia.

Ancient shark species is Great White ancestor

The great white shark isn't descended from megatooth sharks such as the extinct Carcharocles megalodon - the largest carnivorous shark that ever lived - as many believed.

Shark inspires optimized water turbine

A Michigan man, taking a design cue from nature, might be onto a better way to harness the power of waterways across the globe.