Scientists have uncovered new clues about a curious fossil site in Nevada, a graveyard for dozens of giant marine reptiles. Instead of the site of a massive die-off as suspected, it might have been an ancient maternity ward where the creatures came to give birth. The site is famous for its fossils from giant ichthyosaurs — reptiles that dominated the ancient seas and could grow up to the size of a school bus. The creatures — the name means fish lizard — were underwater predators with large paddle-shaped flippers and long jaws full of teeth. This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP) Since the ichthyosaur bones in Nevada wer...
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