Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
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
Some British police cars carry a teddy bear to console children after an accident.
46
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 dragonflies mate, their tails form a love heart.
22