Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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There are approximately three chickens for every human on Earth.
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A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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The oldest recorded elephant lived for 82 years.
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Nicole Kidman is scared of butterflies.
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