A group of German scientists tested the effects of a more acidic ocean on sharks' teeth and found that future generations of ...

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

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 ...

The study found that as acidity increases, shark teeth could become structurally weaker and more prone to cracking and breaking. This could eventually threaten sharks’ position at the top of the ...