Sloths take two weeks to digest their food.
243
An ostrich's eye is bigger than its brain.
32
Dogs have been man's pet for over 14,000 years.
224
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Cows can sleep standing up, but they can only dream lying down.
745
Catgut comes from sheep not cats.
11
At one 'feeding', a mosquito can absorb one and a half times its own weight in blood.
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