It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6