A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
A puppy is born blind, deaf, and toothless.
16
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
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
When dragonflies mate, their tails form a love heart.
22
When cats are happy, they may squeeze their eyes shut.
10