A research expedition in the Tonga Trench filmed a Pacific sleeper shark, a slow-moving, opportunistic predator rarely seen ...

The ratios of strontium isotopes in fossil shark teeth can be used to better understand how coastal environments evolved in ...

However, blue sharks can make daily drops as far as 1,900 feet (600 m) from the surface, likely to hunt deep-sea prey. Biologists have found sharks in some unexpected spots. Two shark species live ...

Does the new killer shark flick ‘Into the Deep’ bring the bite, or does it sink among the chum? Read our review to find out.

Shortfin makos are the fastest sharks in the sea, but they're failing to outpace the scale of overfishing that is driving ...