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.

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Plesiosaurs are a group of extinct marine reptiles that lived in the oceans while the dinosaurs lived on land. Find out what plesiosaur fossils have revealed about these animals and how big they could ...

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 ...

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