It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
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
Gorillas can catch human colds and other illnesses.
205
The octopus does not have a blind spot.
273