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

Jacob Danner has searched a Florida beach for washed-up items almost every sunrise for the past year. But three weeks ago, Danner, an art curator, found his first megalodon tooth - 3 inches long, and ...

A woman discovered a rare shark tooth in Florida, offering a glimpse into prehistoric times. Nichole Mercuri, 26, was walking along a Florida beach when she says she spotted a giant tooth that once ...

Sharks are famous for their fearsome teeth. That could change - Scientists have linked human activities including the burning ...

Naylor and others cautioned that ocean acidification is indeed going to pose many threats to the ocean beyond just sharks.