The creator of CRISPR babies is flirting again with infamy, this time through a mysterious alliance with an Internet-savvy ...

Researchers have analyzed ancient DNA from Borrelia recurrentis, a type of bacteria that causes relapsing fever, pinpointing when it evolved to spread through lice rather than ticks, and how it gained ...

A study explains how age reshapes the blood system. In both humans and mice, a few stem cells out-compete their neighbors and gradually take over blood production. The loss of diversity results in a ...