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 ...

A digital reconstruction of a million-year-old skull suggests humans may have diverged from our ancient ancestors 400,000 years earlier than thought and in Asia, not Africa, a study found. The ...

Understanding human evolution through the study of whale evolution Brief definition and history of mammals How did land-based mammals return to the sea? Fossils from "transitional species" trace whale ...