Evolution

An ancient Arctic site suggests a complex relationship between humans and canines

Fossil teeth of marine reptiles reveal a connection between ancient oceans and our own

The hammerhead relatives consume copious amounts of sea grass, and have the digestive machinery to process it—making them true omnivores. Christopher Intagliata reports.

The history of modern humans is deeply embedded with the history of other hominid groups. Our understanding of these connections is only just beginning to unfold

When Hurricane Irma blew through the Turks and Caicos, lizards with shorter hindlimbs lucked out. Jason G. Goldman reports. 

Senior Editor Gary Stix talks about the September special issue of Scientific American, devoted to the science of being human. And Brown University evolutionary biologist Ken Miller discusses human chromosome 2 and what it tells us about us.

Recent fossil, archaeological and genetic discoveries are revising the rise of our species

A new experiment suggests our picture of the so-called Ediacarans may be incomplete

How we became a different kind of animal

Two key features created the human mind

Humans are changing the course of evolution