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Let's throw it back, ancient aquatic style. The megalodon shark and the mosasaurus both ruled the seas in their respective eras. Find out which of these historic apex predators could take the other in ...

I write about the ocean, climate change, and the future of our planet. For example, our knowledge of Megalodon's existence comes from the fossil record, which reveals teeth designed for hunting ...

if cows swam in the sea. How big are the megalodon's teeth? Watch the video above to see how big the megalodon's tooth compares to that of a great white shark. You can also see how big it is in ...

A prehistoric food fight may have spelled the end for the megalodon, the largest shark that ever lived. A study of the ocean giant's fossil teeth suggests it had to compete for food with another ...

Wading in knee-deep waters, that's exactly what she found: a tooth belonging to the now-extinct Otodus megalodon shark species. A local marine museum's curator called it a "once-in-a-lifetime kind ...

An amazing discovery along the shores of the Chesapeake Bay dating back 10 million years soon will be displayed to the public in Calvert County, Maryland. Along the western shore of the Chesapeake ...