Virunga National Park: Viral photo shows apes standing upright with human caregivers - The Washington Post
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Interesting Animal Behavior With A Male Chimpanzee Walking Upright Like A Human Across A Dirt Road The Other Four Chimps Are Moving In The Usual Way With Knuckles To The Ground Uganda
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Human Evolution: Walking Upright Evolved at Least 3.6 Million Years Ago—Long Before Modern Humans Appeared
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Two legs better? Humanity's ancestors may have started walking upright to run off with armfuls of food | Daily Mail Online
Snacking on the Run | Although gorillas occasionally walk on two legs (bipedal), it is less common. Not for Louis though - he can often be seen walking bipedally when his...
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2,000+ Ape Walking Stock Photos, Pictures & Royalty-Free Images - iStock | Caveman, Human evolution, Evolution
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Early humans may have first walked upright in the trees | UCL News - UCL – University College London
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