Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
When dragonflies mate, their tails form a love heart.
22
When cats are happy, they may squeeze their eyes shut.
10
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16