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Seated
male orangutan Photograph by Dušan Smetana, 2019 |
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| A Bornean orangutan sits slouched on a wooden beam, mouth agape, at Las Įguilas Jungle Park, Tenerife. Male orangutans develop pronounced cheek pads around the age of 15 to 20 years, a secondary sexual characteristic that serves as a sign of maturity and dominance within their social structure. |
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