Investigators from Massachusetts General Hospital (MGH) have found a subpopulation of hematopoietic stem cells, the source of all blood and immune system cells, that reproduce much more slowly than ...

Scientists in the United States have created robots that can spontaneously self-replicate in what they’re calling a "profound" discovery.The study, published on Monday in Proceedings of the National ...

"Ready to help:" Greendale man saves mom, baby from fire A Greendale man is being hailed as a hero after he helped a mother and her baby out of their burning home. Police investigating after 1 shot in ...

Sperm and egg cells, or gametes, are unusual. Egg cells are some of the largest cell types, and sperm are some of the smallest. In humans, these haploid cells come together to form diploid cells. It's ...

The robots are alive, and now they can reproduce. That’s not a sequel to “The Terminator.” It’s the result of new research showing that microscopic life-forms made of frogs’ stem cells can ...