One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Early American humans hunted car-size armadillos and used their shells for houses.
12
A cow produces around 200,000 glasses of milk in her lifetime.
373
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25