New study finds fossilized red blood cells and heme in a 115 million-year-old dinosaur bone, expanding fossil chemistry.

Vaccine effectiveness relies on creating a strong antibody response that can be reactivated to fight future infections. Now, researchers from Japan report that antibody-producing cells are destined ...

The hemoglobin in humans’ blood is not the standard for all critters—and one group of Antarctic fish are the only vertebrates ...

A controlled study of clots built from healthy young adults' blood finds that fibrinogen explains up to 78 percent of the ...

Researchers used CRISPR to remove CD33 from donor stem cells, potentially giving doctors a way to attack aggressive blood cancers without destroying the healthy cells patients need after a ...