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 ...

Sharks continually shed teeth throughout their lives, contributing to abundant fossil records. The Wilmington area is a hotspot for shark teeth due to favorable geological conditions. Shark teeth ...

This is read by an automated voice. Please report any issues or inconsistencies here. PORTLAND, Maine — Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth ...

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 weapons at risk.