A geographical area of fertile land stretching in a semicircle from the Nile to the Tigris

A species that is closely related to Homo sapiens, they lived in Europe, Asia, and the Middle East.

A group of similar species

A unit of geologic time often used in paleontology

A species that existed before Homo sapiens. They lived during the Upper Paleolithic Period

The name geographers have given to sweeping expanse of the Pacific Ocean that holds roughly 10,000 islands

Dry land around a bridge that is connecting Asia and North America

A member of the primate family Hominidae. They had bipedal posture and a large brain.

The gradual change in a species over time