It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The octopus does not have a blind spot.
273
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79