In this 4.4-million-year-old skeleton, scientists may have found the missing step between climbing and walking.

Ancient ankle bones of Ardipithecus ramidus reveal how early humans combined climbing and upright walking, reshaping the ...

The findings of this study suggest that the first humans may have originated from apes that were accustomed to living in two ...

New research uncovers surprising clues about the early stages of human evolution, reshaping what we thought we knew.

Since being discovered in 1994, Ardi’s 4.4-million-year-old remains have been at the heart of an anthropological debate. To ...

A 4.4-million-year-old Ardipithecus fossil named "Ardi" shows early humans walked upright, keeping ape-like climbing ...

Analysis of a 4.4-million-year-old ankle bone supports the hypothesis that the earliest humans evolved from an ape-like ...

For more than a century, scientists have been piecing together the puzzle of human evolution, examining fossil evidence to ...

SACRAMENTO, Calif. -- California's leading Democrats are grappling with how to confront lost jobs and high gas prices that the oil industry says are the result of the state's climate policies. Thirty ...

The Trump administration wasted no time in tapping individuals with ties to fossil fuel industries and right-wing think tanks funded by oil tycoons for key environmental and energy policy positions, ...

The SaberCats have their sights set on the semifinals — at least — yet again in Colorado's Class 5A boys team tennis tournament. No. 5 Fossil Ridge swept away No. 12 Broomfield 7-0 on Oct. 1 in the ...

The former acting head of the Department of Energy’s fossil office is leaving the federal government and heading to a consulting firm. In a recent LinkedIn post, Tala Goudarzi said she is joining the ...