Add Yahoo as a preferred source to see more of our stories on Google. Moray eel with open mouth and cleaner shrimp Moray eels already look terrifying on their own. However, few people know that these ...

If you're reading this sentence, you might have a fish to thank. Fish were the first animals to evolve jaws. They use their jaws primarily to eat, but also for defense, as tools—such as to burrow or ...

WASHINGTON: A bottom-dwelling, mud-grubbing, armoured fish that swam in tropical seas 423 million years ago is fundamentally changing the understanding of the evolution of an indisputably ...