Add Yahoo as a preferred source to see more of our stories on Google. Charles Shelton Jr. displays sharks teeth and fossils found during recent trips to Myrtle Beach. Shelton, who has hunted sharks ...

(Close-up of a shark with sharp teeth. Credit: GIOVANNI NITTI / Shutterstock.) Shark teeth are a marvel of evolution. They are so sharp that many island cultures once used them as weapons and tools to ...

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 ...

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 ...

Bull sharks (Carcharhinus Leucas) are one of the ocean’s most fearsome creatures. Although some animals may prey on bull sharks, such as crocodiles, killer whales, and the occasional great white shark ...