The newly described mosasaur Tylosaurus rex spanned up to 43 feet (13 meters) long and may have been one of the fiercest ...
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Incredible species of T. rex discovered — a beast with skull-crushing jaws that lived underwater
Just when you thought it was safe to go back in the water, scientists have discovered a giant, bus-size sea predator that was ...
In National Geographic's inaugural edition of the Stones & Bones newsletter, we travel to the far reaches of Argentina to ...
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