The cat brain weighs about 30g.
167
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
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.
10
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A dairy cow can produce more milk when listening to music.
446
Dogs sometimes fake being sick to get attention.
26
Sloths take two weeks to digest their food.
243