Stem cells are precursors of a variety of different cells: They can turn into anything from blood to bone to muscle. Human blood stem cells, known as hematopoietic stem cells, are the forerunners of ...

All the Latest Game Footage and Images from Blood Country Blood Country is a roguelike shooter set in the Wild West. Kill outlaws with your guns, knife, and dynamite. Defeat the gang's leader, and ...

The team observed the emergence of the three-dimensional embryo-like structures under a microscope in the lab. These started producing blood (seen here in red) after around two weeks of development - ...