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
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
A dairy cow can produce more milk when listening to music.
446
The elephant brain weighs about 6,000g.
274
The oldest recorded elephant lived for 82 years.
213
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
There's a rare breed of pig that looks like a sheep.
14