Sea otters hold hands while sleeping so they don’t drift away from each other.
104
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Raj from the Big Bang Theory is married to Miss India.
11
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