Researchers have demonstrated that intensified environmental variability (EV) can promote the evolution of cooperation through simulation based on evolutionary game theory. This result offers a new ...

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 large-scale climate simulation combined with fossil evidence shows how shifts in temperature and rainfall guided human migration and evolution. Changes driven by Earth’s orbital cycles altered ...

Researchers at the University of Maine are theorizing that human beings may be in the midst of a major evolutionary shift—driven not by genes, but by culture. "Human evolution seems to be changing ...

Shaw Badenhorst works for the University of the Witwatersrand. He receives funding from GENUS, the National Research Foundation and the Palaeontological Scientific Trust. South Africa has one of the ...

Tsukuba, Japan—Cooperation is fundamental to human societies. Building on the hypothesis that heightened environmental variability in Africa during the Middle Stone Age influenced behavioral evolution ...