There’s more history in your blood types than you think, and it didn’t begin with humans. Here’s what we know about them, ...

Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...

A rare new blood type has been discovered, so "step aside A, B and O – there's a new player in town", said Gizmodo. So far, the "Gwada negative" blood type has been identified only in one person: a ...

A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body," according to American Red Cross.

Most people don’t spare a thought for their blood type unless they’re in need of a transfusion — but could yours hold secrets to your health? And is one better than the others? There are four main ...