We discover how he is covered in feathers, like a bird. Another encounter from age of the dinosaurs. We meet Al the Allosaurus, who looks a bit like a T-rex. We see how he can opens his jaws really ...

Allosaurus was the most common large carnivore of the Late Jurassic in North America. It was a smaller predecessor of the Cretaceous Tyrannosaurus. Strong forelimbs with sharp claws, powerful hind ...