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Behavioral Ecology and Sociobiology · 2023 · Vol. 77 · Issue 12 · Springer
The social and mating systems of orangutans, one of our closest relatives, remain poorly understood. Orangutans ( Pongo spp . ) are highly sexually dimorphic and females are philopatric and maintain individual, but overlapping home ranges, whereas males disperse, are non-territorial and wide-ranging, and show bimaturism, with many years between reaching sexual maturity and attaining full secondary sexual characteristics (inclu...
Behavioral Ecology and Sociobiology · 2021 · Vol. 75 · Issue 5 · Springer
Orangutans show a pronounced sexual dimorphism, with flanged males (i.e., males with fully grown secondary sexual characteristics) reaching twice the size of adult females. Furthermore, adult orangutans show sex-specific dispersal and activity patterns. This study investigates sex differences in adult foraging behavior and sheds light on how these differences develop in immatures. We analyzed 11 years of feeding data on ten ad...