When cats are happy, they may squeeze their eyes shut.
10
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
22