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.

A woman looking for shark's teeth on a North Carolina beach stumbled onto something much more mysterious when a sliver of metal appeared in the sand. It happened Tuesday, Nov. 18, at Holden Beach, and ...

Add Yahoo as a preferred source to see more of our stories on Google. A woman discovered a rare shark tooth in Florida, offering a glimpse into prehistoric times. Nichole Mercuri, 26, was walking ...

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

A woman looking for shark’s teeth on a North Carolina beach stumbled onto something much more mysterious when a sliver of metal appeared in the sand. It happened Tuesday, Nov. 18, at Holden Beach, and ...

A tourist looking for shark’s teeth on a North Carolina beach stumbled onto something when this sliver of steel appeared in the sand. It’s believed to be a bullet linked to WWII training missions off ...