Parents receive 1 out of every 5 Valentines.
20
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
The single biggest predictor of love is proximity.
30
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
40% of people who are rejected in romantic love slip into clinical depression.
72