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 dragonflies mate, their tails form a love heart.
22
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
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
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
The left ear is more responsive to words of love and emotion whispered into it than the right.
40