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
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
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Some British police cars carry a teddy bear to console children after an accident.
46