Sharks are known for their razor-sharp teeth, but a new study warns that rising ocean acidity could leave even the sea’s fiercest predators with weaker, more brittle bites. At the heart of the problem ...

Shark teeth could lose their cutting edge as oceans become more acidic, new research warns. Scientists in Germany say rising carbon dioxide levels may erode the very weapons that predators rely on for ...

Shark feeding habits are helping scientists identify marks on human bones found in the ocean. By analyzing shark scavenging behavior, the University of Florida's C.A. Pound Human Identification ...