Full-body defense does not always look the way textbooks say it should. In planarian flatworms, a newly identified cell type ...

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 ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: The dawn of organ transplantation ...

For those with kidney failure, a transplant is often the greatest promise of a healthier, longer life. Yet thousands wait years for a match that never comes. Incompatibility of blood type is one of ...

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