Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
When dragonflies mate, their tails form a love heart.
22
Raj from the Big Bang Theory is married to Miss India.
11
Baby rabbits are called kittens.
6
A group of pugs is called a grumble.
10
Dolphins have names for one another.
18