Scientists are quite literally following the tracks of ancient marine reptiles, whose paddle prints shed light on how they propelled themselves through water.
Nothosaurs, ancient marine reptiles swimming the seas 252 to 66 million years ago during the dino era, are a mysterious creature. These voracious semi-aquatic hunters had elongated bodies and paddle-like limbs, and were among the top marine predators around along the Triassic coasts.
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