The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Ants have tiny magnetic compasses in their antennae which help them navigate.
9
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Nicole Kidman is scared of butterflies.
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