Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Alligators can live up to 100 years.
337
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
In Australia, there are spiders big enough to eat snakes.
20
The head of a jellyfish is called the "Bell."
6