Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
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Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
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In 1949, an official boxing match between a bear and a man was held. The bear won.
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