One litter of kittens can be produced by more than one father.
57
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Raj from the Big Bang Theory is married to Miss India.
11
When dragonflies mate, their tails form a love heart.
22
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Dolphins have names for one another.
18