Human Origins 101 | National Geographic

The Evolution of Humanity

The Beginning of Human Evolution

• The story of humanity's evolution began approximately seven million years ago when the human lineage diverged from chimpanzees, setting the stage for a unique evolutionary journey.

• Over 20 early human species, or hominins, emerged during this period; most became extinct while some may have contributed to modern humans' ancestry.

Characteristics of Early Hominins

• Early hominins displayed varying degrees of human-like traits, including larger brains, smaller teeth, bipedalism, and tool use.

• These hominins are categorized into three major groups: early hominins, australopithecines, and members of the genus Homo.

Australopithecines: A Key Phase in Evolution

• Australopithecines lived between 4.4 and 1.4 million years ago across Africa; they retained some ape-like features but showed significant advancements toward human traits.

• Notable changes in skull structure and locomotion indicate a shift towards consistent bipedal movement among australopithecines.

The Rise of the Genus Homo

• Members of the genus Homo appeared over two million years ago and coexisted with some australopithecine species.