Orangutans postponed 'puberty' to be the leader

Any teenage girl who understands when there are bigger and stronger guys next to me, I can hardly reach the beautiful girls. Orangutan (orang-outang) living on the island of Borneo and Sumatra (two islands in Indonesia, the orangutan's homeland) had the same problem.

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However, only the Sumatran orangutans persistently apply a very unique solution: they have not yet awakened yet, but all their strength to turn themselves into strong, dignified, strong enough to "lose enough" with The bigger ones have. And after achieving this goal, they will take into account puberty and flirt with girls and strive to become leaders.

Male orangutans can give birth to females at the age of approximately 15, but to conquer a girlfriend also needs a secondary characteristic of 'masculine' , to have thicker hairs in the chest and more recognizable are the cheeks of the cheeks.

Orangutans on Sumatra island postpone puberty to focus on
Physical training until you defeat the leader male.

In the Sumatran orangutans, when they do not have the same strength as their children, their hairs are also postponed, even growing, sometimes for more than 10 years. No other primates including Borneo orangutans have this behavior.

Gauri Pradhan, of the University of South Florida in Tampa and colleagues, notes the difference between the different species of the same species but living in different areas: The male live males in Borneo are different from the live male orangutans. In Sumatra, it is possible to 'own possession' female orangutans weekly for a certain period of time.

To understand the consequences of the behavior of orangutans living in the two localities, Pradhan built a mathematical model of the orangutan population, which lasted for tens of years in their own places.

As a result, she realized that the male orangutans in Sumatra could postpone sexual maturity in the condition that all the orangutans in the herd were monopolized by the first male. They focus on forging themselves until they can challenge the dominance of the leader. And it was then that they grew up.

According to Newscientist, this research model is rated as 'simple but very solid' by the leading orangutan researcher of Amsterdam University (Netherlands) .