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'Big Al' is the name given to a real Allosaurus fragilis skeleton. But Big Al wasn't big at all - he wasn't even fully grown. Dr Alexandra Freeman worked on this Walking with Dinosaurs special and ...

Forget those sluggish tail-draggers you’ve seen plodding through old cartoons—in the real world, many dinosaurs lived fast and died young. Meet Allosaurus, a fearsome hunter with a knack for war ...