A breakthrough fossil discovery is changing what we know about some of the largest mammals to ever walk the Earth.

ST. CHARLES, Ill. (AP) — Investigators have determined that a skull discovered in the wall of an Illinois home in 1978 was that of an Indiana teenager who died more than 150 years ago ...

It’s the late Jurassic Period in the super continent of Laurasia, some 85 million years into the reign of the dinosaurs. The ...

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