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Ancient Fossil Reveals Climbing Traits, Challenges Evolution Assumptions

10/21/2025

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Summary

Story summary

The study by Washington University in St. Louis analyzes the 4.4-million-year-old fossil Ardipithecus ramidus (Ardi) and finds ankle similarities to modern African apes.
This suggests a blend of climbing and early bipedal movement for Ardi.
The findings challenge prior claims that Ardi did not share ape-like traits.
Dr. Thomas Prang states the findings do not imply humans evolved from chimpanzees but indicate a common ancestor likely resembled modern chimps.

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Story summary

The study by Washington University in St. Louis analyzes the 4.4-million-year-old fossil Ardipithecus ramidus (Ardi) and finds ankle similarities to modern African apes.
This suggests a blend of climbing and early bipedal movement for Ardi.
The findings challenge prior claims that Ardi did not share ape-like traits.
Dr. Thomas Prang states the findings do not imply humans evolved from chimpanzees but indicate a common ancestor likely resembled modern chimps.