When cats are happy, they may squeeze their eyes shut.
10
Dolphins have names for one another.
18
When dragonflies mate, their tails form a love heart.
22
Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
22
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40