To mark the 250th anniversary of the United States, we’re cataloging 25 objects that define the country’s history. The megalodon was one of the biggest fish that ever lived, with seven-inch-long teeth ...

A battle between a megalodon and a blue whale sounds thrilling on paper, but in reality, these giants were separated by millions of years, which might be for the best. The megalodon, an enormous shark ...

As one of the largest predators to have ever lived, megalodon captures people’s imagination – and for good reason. But was this apex predator simply a beefed-up great white shark, and is it still ...

Add Yahoo as a preferred source to see more of our stories on Google. Roaming the ancient seas eons ago, the megalodon shark eviscerated its prey with jaws that were 10 feet wide. Warpaintcobra/iStock ...