For decades, scientists were baffled by why thorny skates in the North Atlantic came in two distinct sizes. Despite extensive ...

After nine months, the strange behavior that claimed the lives of endangered sawfish is back. Here’s what we know about ...

The sighting “highlights the importance of modern, cost-effective technologies to survey the deep sea and locate these lost sharks before they vanish.” ...

While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...

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