A puppy is born blind, deaf, and toothless.
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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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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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There's a rare breed of pig that looks like a sheep.
14
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23