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Orangutans in Sumatra are able to hold their own on the maturation * ovoe 10 years
Orangutans of Sumatra has a unique feature: they can on their own to hold their own on the * ovoe maturation, ie the development of secondary * ovyh signs. Some manage to postpone adulthood for more than 10 years!
Despite the fact that orangutans actually continue to remain children, their growth continues. So, without wasting energy on reproduction, they gain the strength to overthrow the then dominant male with a "throne." It has been observed that the orangutans that have matured later, more successful in attracting the attention of females and produce more offspring.
via factroom.ru