An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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Early American humans hunted car-size armadillos and used their shells for houses.
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Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
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By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
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Cats sleep for 70% of their lives.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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