By tracking neural crest cells in catshark embryos, researchers discovered that the molecular toolkit behind face-building is ...

Despite multiple mass extinctions, the frilled shark has managed to thrive for 100 million years. Today, it remains one of evolution’s most haunting survivors. Long before forests reshaped Earth’s ...

More than 100 million years ago, scientists say, warming seas and reduced oxygen may have sent some sharks higher into the water column, where they evolved to be fierce and hungry. By Jeanne Timmons ...

When you picture a shark, you probably think of a large, powerful predator cruising the open ocean. But how did sharks become so diverse? A new study I led investigated the evolution of body shape in ...

(CNN) — During the Cretaceous Period, a genus of sharks roamed the sea with rows of unusual teeth. Mostly large and rounded, these chompers were not meant to slice through their prey, but to grind and ...

Here’s what you’ll learn when you read this story: Sharks are older than a surprising amount of things, both on Earth and in the rest of the universe. While sharks have seen evolutionary changes in ...

As a shark tooth and fossil hunting enthusiast, I often have people ask me why I find fossils so fascinating. To me, the answer is simple: I’m astounded by the fact that I can walk along the beach in ...

Sharks, a group of predators that have patrolled the oceans for more than 400 million years, carry no true bone anywhere in ...

Now, remains uncovered from limestone quarries in northeastern Mexico are finally giving researchers a clearer idea of the shark’s appearance, including one fossil that shows almost all skeletal ...