Taking the evolutionary plunge into water and abandoning land for good, as some crocodilian ancestors did nearly 200 million years ago, is often framed as choosing freedom: from gravity, from territorial boundaries, from dietary constraints.
Crocodyliforms, ancient relatives of the modern crocodile, like Sarcosuchus imperator
at the French National Museum of Natural History, may have been warmblooded
[Credit: Patrick Kovarik/AFP —…
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