The ancestor of all domestic cats is the African Wild Cat which still exists today.
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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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Domestic pigs average a top speed of about 11 miles per hour.
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Condoms were originally made of animal intestines or linen.
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Nicole Kidman is scared of butterflies.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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