A new study proposes that the massive ancient shark was built more slenderly than a great white. But not all paleontologists ...

Uruguayan authorities reported Wednesday the discovery of a dead 15-meter whale on the River Plate beach of Colonia, believed to be the first such discovery in the past 100 years. The mammal ...

blue whale-like proportions. The prehistoric shark megalodon is often considered the biggest shark to ever live. These animals are estimated to have reached 15 to 18 metres long, which makes them ...

A small but fascinating collection of Megalodon teeth exhibit deep bite marks from other Megalodons, raising questions about ...

Whale sharks can reach 60 feet in length ... It is estimated megalodons could reach between 15 and 18 meters, or around 49 to 60 feet, in length, says the Natural History Museum.