See an artist's rendition of what some paleoanthropologists believe could be the common ancestor of both humans and chimps and read about the discovery of what scientists said was the oldest known human ancestor, Ardipithecus ramidus. [Date of article: October 1, 2009] You can also listen to this story that was broadcast on All Things Considered on NPR.

Concepts

hominids

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Additional Tags

human ancestor, oldest human ancestor, ardi, ardipithecus, ardipithecus ramidus, npr, national public radio

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Classroom Considerations

• Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)