The theory of evolution proposes that life and humans arose through a natural process.

Clearly humans did not arise on Earth.

There's no guarantee," Dews said, "that humans necessarily arise on Earth-type planets.

The two independent lines of evidence support the idea that behaviorally modern humans arose in Africa around 50,000 years ago from their anatomically modern forebears.

A literate, readable argument for the theory that modern humans arose in Africa alone.

Anatomically modern humans arose in Africa about 200,000 years ago, and reached behavioral modernity about 50,000 years ago.

The Out of Asia theory is an obsolete scientific theory which contended that modern humans first arose in Asia.

The biologists declared that anatomically modern humans must have arisen in Africa about 200,000 years ago.

According to the recent single origin hypothesis, anatomically modern humans arose in East Africa approximately 200,000 years ago.

Defenders of the established view that modern humans arose from archaic hominids in sub-Saharan Africa may wait for confirming evidence before changing their minds.