Scientists have uncovered a surprising new picture of human origins that challenges the long-held idea of a single ancestral ...

Nearly one million years ago, humanity came perilously close to disappearing. A new study reveals that our ancestors may have been reduced to just 1,280 individuals, leaving the human race on the ...

Studying human evolution involves piecing together scattered clues about how we survived against tough odds. One of the biggest mysteries is understanding how large or small ancient human populations ...

A recent groundbreaking study has radically altered our understanding of human evolution. Homo sapiens, traditionally thought to have descended from a single lineage, is now believed to be the product ...

Add Yahoo as a preferred source to see more of our stories on Google. (Mait Juriado photo/Moment/Getty Images) The human population has already grown too large and demanding for Earth to sustainably ...

We are on the cusp of a major and unprecedented turning point in human history. For the first time in as long as humans have roamed the earth, the global human population is about to peak and begin an ...

Across North America, mountain lions, bears and gray wolves have made a remarkable comeback over the last 50 years. Once nearly exterminated, these animals have been recovering their populations and ...