CALGARY, Alberta — An ancient sea monster the size of a car might sound like a behemoth, but it was quite small compared with its ginormous cousins, some of which reached bus lengths, new research ...

Add Yahoo as a preferred source to see more of our stories on Google. An ocean-dwelling, slender-necked reptile once rumored to be the Loch Ness monster spent part of its life in a freshwater lake, ...

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Researchers identified fossils in a 100-million-year-old Moroccan freshwater system as a marine reptile. Previously, the reptile was thought to have only spent time in saltwater. Some once believed ...