One litter of kittens can be produced by more than one father.
57
Raj from the Big Bang Theory is married to Miss India.
11
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
A puppy is born blind, deaf, and toothless.
16
When dragonflies mate, their tails form a love heart.
22