The ancestor of all domestic cats is the African Wild Cat which still exists today.
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Rattlesnake mating sessions have been known to last more than 22 hours.
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There's a rare breed of pig that looks like a sheep.
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The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
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The Basenji dog is the only dog that is not able to bark.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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