Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Mosquitoes don't just bite you, they also pee on you.
11
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Lobsters have blue blood.
476
Your heart will pump about 212 million liters in its lifetime.
26
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12