When dragonflies mate, their tails form a love heart.
22
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
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
Historically, sweat has been an active ingredient in perfume and love potions.
309