Talk about a lonely hearts club. An unnamed woman from Guadeloupe has the rarest blood type on earth, to the extent that ...

“She is undoubtedly the only known case in the world,” said Thierry Peyrard, a medical biologist at Établissement français du ...

Now, scientists say the woman is the only known carrier of a new blood type called “Gwada negative.” It’s the only blood type ...

We each have a blood group, either A, B, AB or O; that is either positive or negative, depending on whether they have inherited an Rh (Rhesus) factor; where people with a Rh factor are Rh positive ...

After years of study, scientists have discovered a new blood type in a woman from Guadeloupe. They're now searching for more ...

An incredibly rare genetic mutation has given rise to a brand new blood type which is currently thought to exist in just one ...

People with Rhesus positive can get blood from Rhesus negative but Rhesus negative cannot get blood from rhesus positive, “because the body will form an antibody against it,” explains Chepkok.

Scientists have spent decades studying rhesus macaques on the remote Monkey Island. They're learning how the stress of environmental crises, like hurricanes, impact the monkeys.

Scientists have spent decades studying rhesus macaques on the remote Monkey Island. They're learning how the stress of environmental crises, like hurricanes, impact the monkeys.