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 ...

(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 ...

Some shark species might belong to their own distinct lineage, which is separate from all other sharks, rays and skates, according to a new study ...

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 ...

New research is challenging long-held beliefs about how sharks are related, revealing surprising evolutionary twists. From rare color mutations to microscopic skin adaptations, scientists are ...

Biodiversity loss isn’t just about losing species — it’s about losing the evolutionary traits and ecological roles that make those species unique. A new study on requiem sharks (Carcharhinus) shows ...

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 ...

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 ...