In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
When dragonflies mate, their tails form a love heart.
22
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Couples' personalities converge over time to make partners more and more similar.
235
The average person will go on a date at least 100 times before they finally marry.
33
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
Historically, sweat has been an active ingredient in perfume and love potions.
309