For nearly 30 years, a landmark study shaped how scientists understood the relationship between brain and body size in ...

Recent research challenges the idea that natural selection favored larger human brains. Scientists analyzed fossil skulls and ...

Human evolution has long been tied to growing brain size, and new research suggests prenatal hormones may have played a surprising role. By studying the relative lengths of index and ring fingers — a ...

A new study has examined how mothers influence the size of their child's head—and, as a result, brain size and future ...

For most of human evolution, the story of the brain seemed to move in one direction. It got bigger. That long rise is still there in the fossil record. But a new analysis argues that the trend did not ...

An international study changes the view that exposure to the toxic metal lead is largely a post-industrial phenomenon. The research reveals that our human ancestors were periodically exposed to lead ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Human newborns arrive remarkably underdeveloped. The reason lies in a deep evolutionary ...