Today I Learned … May 29, 2023December 30, 2022 ~ sylviashults Plesiosaurs, a long-extinct marine reptile, suffered from the bends. This sickness, caused by nitrogen gas bubbling out of the animal’s bloodstream, caused pits and erosions to form on the plesiosaurs’ snout and rib bones. Like this? Tell someone!TwitterFacebookMoreEmailPrintPinterestLike Loading...