When cats are happy, they may squeeze their eyes shut.
10
When dragonflies mate, their tails form a love heart.
22
One litter of kittens can be produced by more than one father.
57
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13