Aquaman is scratched by a Robot shark, exposing his blood.[1]

Blood was the bodily fluid of humans, animals and most alien species. When oxygenated, it appeared red, although some alien species had a variety of different colors of blood. As an example, Ungarans had purple blood.[2]

Mammals and birds generally had warm blood, while reptiles, amphibians and fish had cold blood.

Murder was a crime that was often referred to as Bloodshed, which referred to spilling blood. Without blood, a person could not live. In the case of Bruce Wayne's parents, this is what happened to them, after they were shot by a gun, they bled to death.

It was common in the medical field for patients with a low-blood count to receive blood transfusions.[3]

Vampires were creatures who fed on blood just like food. This was one of many reasons why Vampires were hated by so many people.


  1. As seen in the Superfriends season 7 episode Superclones (1983).
  2. This was never shown to be the case in the SFU but in DC Comics and other sources Ungarans have purple blood.
  3. As seen in the Superfriends season 7 episode A Pint of Life (1983).

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