Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Couples' personalities converge over time to make partners more and more similar.
235
Parents receive 1 out of every 5 Valentines.
20
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
The left ear is more responsive to words of love and emotion whispered into it than the right.
40