WASHINGTON (Reuters) - The way orangutans navigate fragile tree branches in search of fruit has led scientists to propose that human ancestors with similar lifestyles may have begun walking on two ...
Taxonomy, geographic variation, and population genetics of Bornean and Sumatran orangutans / Benoît Goossens ... [et al.] -- The functional significance of variation in jaw form in orangutans / Andrea ...
Researchers have confirmed that the critically endangered Tapanuli orangutan, previously thought to live only in Sumatra’s Batang Toru forest, also inhabits a peat swamp forest 32 kilometers (20 miles ...
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