When cats are happy, they may squeeze their eyes shut.
10
Dolphins have names for one another.
18
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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
A group of kittens is called a "kindle".
10
Baby rabbits are called kittens.
6