Shark teeth from museum jaws can now reveal what sharks ate decades ago. New research shows preservation chemicals don’t ...

Teeth from sharks and rays can be used to study their diet, but one of the biggest challenges in shark science is collecting ...

Understanding hammerhead sharks’ food preferences could aid efforts to protect the critically endangered fish.

Between eight and 14 feet but can reach up to 23 feet Using this method, scientists discovered Greenland sharks have a life expectancy of at least 272 years and could reach 392, give or take about ...