T Rex's bite strong enough to bite a car in half
New technology means that scientists can find out more than ever before about dinosaurs.
Even the smallest fossils can give clues about what they looked like or how they acted.
It is only recently that scientist have been able to prove theories about dinosaurs like what colour their feathers.
Hear how computer modelling has proved that a T Rex could have bitten a car in half with it's massive jaws.