A puppy is born blind, deaf, and toothless.
16
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
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
Dolphins have names for one another.
18