The orangutans’ “trick” to ensure their reproductive success

Orangutan females reach sexual maturity at 11-15 years. Males reach puberty at 7-9 years and thereafter they have 2 possibilities :

1.Reach adult size with all its features (such as lateral facial pads -green arrow-).

2.Stay in an adolescent state (development interrupted) in terms of morphology, but still are fertile and reproductively active.

Morphologies of a female and an adult male and a juvenile male. Doug Swinson, Luca Ambrosi & Kateřina Jíšová

Possible meaning? With the aspect of juvenile they can deceive the females and take advantage of them. On the one hand they achieve to reproduce and, on the other hand, they would need to eat less because they have a smaller size than an adult male.

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