The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
476
Lobsters have blue blood.
476
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
Mosquitoes don't just bite you, they also pee on you.
11
Your heart will pump about 212 million liters in its lifetime.
26
20 minutes after smoking a cigarette, blood pressure drops to normal.
37
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