Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
One litter of kittens can be produced by more than one father.
57
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65