Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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A scorpion can hold its breath for up to 6 days.
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Cats and dogs can hear ultrasound.
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Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
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