The colossal squid has the largest eyes in the world.
4
Cows can sleep standing up, but they can only dream lying down.
745
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Sharks have been on the planet longer than trees.
14
Cats recognise the voice of their owner, but never evolved to care.
22
A puppy is born blind, deaf, and toothless.
16
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10