At three months, a young langur's face and ears have changed whitish pinkish color to black.
三個月后, 幼年葉猴原本紅白色的臉和耳朵已經變成黑色的了.
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The interrelation of habitat factors of white headed langur has also been stud.
并研究白頭葉猴生境因子之間的相關性.
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Old World monkeys: guenon; baboon; colobus monkey; langur; macaque ; mandrill ; mangabey; patas; proboscis monkey.
舊域猴：長尾猴; 狒狒; 疣猴; 葉猴; 短尾猴; 山魈;白眉猴; 長鼻猴.
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