10 Amazing Things You Didn’t Know About Blood
Other Animals Have Blood Types
While humans have three major blood types, A, B and O, they aren’t exclusive to our species. Many other animals have their own unique types, including dogs which have more than a dozen different forms.
Ancient Romans Drank The Blood Of Gladiators
Many ancient civilizations believed that blood had curative properties and could treat a variety of problems. As transfusions had not yet been invented, most people would simply drink blood taken from an animal or person. Some Romans would even wait in the wings to drink the blood of gladiators who had been killed in battle.