A giant five-inch megalodon tooth that was found by nine-year-old fossil hunter is a "once-in-a-lifetime" discovery, it's been claimed.
Molly Sampson discovered the 13cm tooth on Christmas Day while she was at Calvert Cliffs State Park in Chesapeake Bay.
She has already collected over 400 shark teeth on the coastline in Maryland, US, but the latest huge tooth actually belonged to a megalodon, which was the largest to swim the oceans.
