Dolphins have names for one another.
18
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
Some British police cars carry a teddy bear to console children after an accident.
46
When cats are happy, they may squeeze their eyes shut.
10