Dolphins have names for one another.
18
When cats are happy, they may squeeze their eyes shut.
10
When dragonflies mate, their tails form a love heart.
22
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Baby rabbits are called kittens.
6
Some British police cars carry a teddy bear to console children after an accident.
46