For years, the megalodon has been imagined as a monstrous version of the great white shark. Depictions in movies and documentaries show a stocky, torpedo-shaped predator, built for speed and power.

Fifteen million years ago, now-extinct species of dolphins ... Still, Shimada’s findings on how giant sea animals’ size affect their speed could help us better understand the evolution ...

More information: Reassessment of the possible size, form, weight, cruising speed, and growth parameters of the extinct megatooth shark, Otodus megalodon (Lamniformes: Otodontidae), and new ...

Ever wondered what the world would be like if insects were as big as elephants or weasels were the size of humans? It gets pretty weird. You can read more about why giant prehistoric animals got ...

Paleontologists at the Royal Ontario Museum (ROM) uncovered the remains of a massive new fossil species that belonged to an extinct ... size. The total length estimated for the animal was half ...