Tyrannosaurs — ASO

By Australian Museum on AppTrack Ninja.

Tyrannosaurs Massive skulls, powerful jaws, two heavy-duty legs and two teeny-tiny arms. And don’t forget the large, bone-crunching teeth. Most of us picture all tyrannosaurs like the iconic T. rex. But is this true? Tyrannosaurs were, in fact, a very diverse group of meat-eating dinosaurs that thrived in the Northern Hemisphere for over 100 million years during the Jurassic and Cretaceous Periods (from 165 to 66 million years ago). Eventually, some of this group became the world’s top predators. Only a mass extinction event halted their dominance. Play the game Hatch your dinosaur eggs and c…

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