Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Couples' personalities converge over time to make partners more and more similar.
235
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
40% of people who are rejected in romantic love slip into clinical depression.
72
You burn 26 calories in a one minute kiss.
605
The left ear is more responsive to words of love and emotion whispered into it than the right.
40