It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
There's a rare breed of pig that looks like a sheep.
14
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Cats and dogs can hear ultrasound.
350
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
When cats are happy, they may squeeze their eyes shut.
10