What the naturalists did not realize was that Plesiosaurus was not an intermediate form between crocodiles and ichthyosaurs, after all, but a unique and starkly different sort of marine reptile.

In the dark seas of the ancient world, few creatures were as interesting as the plesiosaur: a long-necked marine reptile with four large flippers. These fearsome predators dominated the oceans in the ...

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One of the best-known things about Scotland is the Loch Ness Monster, affectionately nicknamed Nessie, reportedly a large creature resembling a plesiosaurus. Loch Ness is a large freshwater lake in ...

The inflexibility of the plesiosaur neck makes these creatures all the more puzzling. If they were incapable of raising their heads above the water to ambush prey from above and lacked the flexibility ...