When Tyrannosaurus rex prowled the land, the oceans of the Late Cretaceous weren’t particularly safe either. Cruising the waters at the time were large predatory reptiles known as mosasaurs, elongated and streamlined for hunting down their prey in the warm shallow seas. Some of these were true beasts reaching up to 18 meters (59 feet) in length, but others were a little more modest. Researchers have revealed the first mosasaur of its kind to be discovered in...
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