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