Cats recognise the voice of their owner, but never evolved to care.
22
Lobsters have blue blood.
476
The largest earthworm on record was found in South Africa and measured 22 feet.
151
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5