One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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The elephant brain weighs about 6,000g.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
When cats are happy, they may squeeze their eyes shut.
10
Cats and dogs can hear ultrasound.
350
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12