Ever wonder why sharks have so many differently shaped teeth or why they keep regrowing throughout their lives? Dr. David ...

Trawlers off the southern coast of India hauled in their nets and began sorting through their catch. Among the haul was a 1-foot-long ocean predator with “bright” eyes. It turned out to be a new ...

The clicking of flattened teeth, discovered by accident, could be “the first documented case of deliberate sound production in sharks,” evolutionary biologist Carolin Nieder, of Woods Hole ...