It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Dogs sometimes fake being sick to get attention.
26
Cats sleep for 70% of their lives.
8
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Gorillas can catch human colds and other illnesses.
205
A group of kittens is called a "kindle".
10
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17