Get all the news you need in your inbox each morning. Based on statistics, the rarest blood type is AB negative. According to the American Red Cross, AB negative blood type occurs in "1% of ...

Blood bags, sorted by type, line a tray at a hospital. Some blood types are more common than others. ER Productions Limited/Getty Images ...

you might not know much about your blood type and how it works. There are several blood types with some being quite rare and ...

Human populations that left Africa evolved quickly whereas Neanderthals stayed the same, according to an analysis of blood ...