PaleoCris and I teamed up with our friend Rick to explore a Florida creek site we rarely get to hunt. The trip paid off with colorful shark teeth, juvenile Megalodon teeth, and some incredibly rare ...

Learn how Indigenous knowledge and modern science reveal the rare cookiecutter shark, which hunts on moonless nights.

Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their ...

How will the climate crisis affect one of the ocean’s fiercest predators? New research published Wednesday has examined what might happen to sharks’ highly specialized, flesh-cutting teeth. As carbon ...

An ancient shark older than forests still glides through deep oceans today. Its strange teeth, slow life cycle, and ...

One of a blacktip reef sharks’ top teeth as seen under a scanning electron microscope. CREDIT: Maximilian Baum (HHU) / Steffen Köhler (HHU). Get the Popular Science daily newsletter💡 Breakthroughs, ...

Despite multiple mass extinctions, the frilled shark has managed to thrive for 100 million years. Today, it remains one of ...