It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
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
Mosquitoes don't just bite you, they also pee on you.
11