paul sereno

According to scientists, SuperCroc crocodiles can run at speeds of up to 32 km/h over short distances. This speed is equivalent to the running speed of an Olympic-level sprinter.

Primitive crocodiles existed 100 million years ago, they are not only good swimmers but also run on land as fast as horses.

Scientists have discovered a huge predatory dinosaur that once lived on Earth called Spinosaurus.

A small dinosaur that lived 200 million years ago possessed fangs like vampires, parrot-like beaks, and hard hair like porcupines.