Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
One litter of kittens can be produced by more than one father.
57
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
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
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Dolphins have names for one another.
18