One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
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When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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