Predatory reptiles that trawled the oceans during the age of the dinosaurs used a rowing motion to scoop up prey, new track marks uncovered in China reveal.
The newly discovered tracks are from creatures called nothosaurs, the top predators of the seas during the Triassic period, which lasted from 251 million to 199 million years ago. The findings settle a long-standing debate about how the ancient sea creatures swam,
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