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
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Your body is creating and killing about 2.4 million red blood cells per second.
17
Lobsters have blue blood.
476
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
Consumption of TNT turns urine amber or deep red, which people often mistake for blood.
301
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217