Neanderthals may have been headed toward their demise much earlier than experts previously thought, new research suggests. In the study, published online Feb. 20 in the journal Nature Communications, ...

An ancestral human species faced a startling population bottleneck and teetered on the brink of extinction around 800,000 years ago, according to new research. Reading time 3 minutes Humankind ...

Microbes often display cooperative behavior in which individual cells put in work and sacrifice resources to collectively benefit the group. But sometimes, "cheater" cells in the group may reap the ...