An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
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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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Sloths take two weeks to digest their food.
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There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
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The Basenji dog is the only dog that is not able to bark.
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