When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
22
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
Two in five people in the world marry their first love.
270
Couples' personalities converge over time to make partners more and more similar.
235
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
464