10 Amazing Things You Didn’t Know About Blood
A Mismatched Transfusion Can Be Deadly
While some blood types aren’t important for transfusions, some can vital to get right. Otherwise they can cause dangerous reactions as the molecules begin to clot and the body’s immune system begins to attack the blood as it sees it as an outside threat.
Plays Often Used Animal Blood In Performances
Before realistic and genuine looking fake blood could be produced, actors would simply use animal blood to simulate human blood in their performances. Before a play was set to begin, someone would simply go to a slaughterhouse to collect enough of the liquid.