Cats recognise the voice of their owner, but never evolved to care.
22
Cows can sleep standing up, but they can only dream lying down.
745
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
A group of unicorns is called a blessing.
304
The cat brain weighs about 30g.
167
Mosquitoes don't just bite you, they also pee on you.
11
Squirrels forget where they hide about half of their nuts.
698