A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Parrot parents "name" their children with a signature call.
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A puppy is born blind, deaf, and toothless.
16
Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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