A 52-foot, life-size model of a Carcharocles megalodon shark is now on display in the National Museum of Natural History’s newly opened dining facilities. Erin I. Garcia de Jesus The Smithsonian ...

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 ...