Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
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
Dolphins have names for one another.
18
One litter of kittens can be produced by more than one father.
57
Raj from the Big Bang Theory is married to Miss India.
11
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
A group of pugs is called a grumble.
10
When cats are happy, they may squeeze their eyes shut.
10