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From woolly mammoths to giant sloths, via some lesser-known ice-age beasts like 'killer koalas', the visuals in this ...

Dunkleosteus used strong muscles, wide opening jaws, and hidden cartilage structures to bite large prey with speed and force.

As such, researchers at Cambridge University and the Helmholtz-Zentrum Berlin have been studying tiny ancient fossils ...

Few complete skeletons remain of this gentle behemoth, who was destroyed by explorers and fur traders in the Arctic.