When Charleston resident Grant Martin found his first shark tooth on a Hilton Head Island beach when he was a kid, he thought he discovered one of the greatest secrets in the world. “I thought, ‘Why ...

PORTLAND, Maine — Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their lives. But changes in the ocean's chemistry could put those ...

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 ...

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, ...

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