It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A cow produces around 200,000 glasses of milk in her lifetime.
373
Dolphins have names for one another.
18
Condoms were originally made of animal intestines or linen.
347
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Whales and dolphins can't taste anything other than salt.
11
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79