When dragonflies mate, their tails form a love heart.
22
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
When cats are happy, they may squeeze their eyes shut.
10
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
One litter of kittens can be produced by more than one father.
57
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13