A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
When cats are happy, they may squeeze their eyes shut.
10
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Cats sleep for 70% of their lives.
8
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Tigers, leopards, and jaguars love "Calvin Klein's Obsession for Men". The scent is used to attract animals to cameras in the wilderness, and was even a turn on for one pair of Jaguars who were subject to it.
17