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Although orangutans are not territorial, adult males will display threatening behaviors upon meeting other males, and only socialize with females to mate. [24] Males are considered the most solitary of the orangutans. The Bornean orangutan has a lifespan of 35–45 years in the wild; [2] in captivity it can live to be about 60. [25]
Orangutan researcher Birutė Galdikas presenting her book about the apes. Orangutans were known to the native people of Sumatra and Borneo for millennia. The apes are known as maias in Sarawak and mawas in other parts of Borneo and in Sumatra. [13] While some communities hunted them for food and decoration, others placed taboos on such practices.
A principal component analysis run in a meta-analysis of 4,000 primate behaviour papers including 62 species found that 47% of the individual variance in cognitive ability tests was accounted for by a single factor, controlling for socio-ecological variables. [46] This value fits within the accepted range of the influence of g on IQ. [47]
There is little consensus regarding the processes by which mammalian males begin to express parental behaviors. [16] In humans, evidence ties oxytocin to sensitive care-giving in both women and men, and with affectionate infant contact in women and stimulatory infant contact in men. In contrast, testosterone decreases in men who become involved ...
The orangutan's intriguing behavior was recorded in 2022 by Ulil Azhari, a co-author and field researcher at the Suaq Project in Medan, Indonesia. Photographs show the animal’s wound closed ...
A wounded orangutan was seen self-medicating with a plant known to relieve pain. It's the first time an animal has been observed applying medicine to a skin injury.
Bornean orangutans (Pongo pygmaeus) exhibited aggression in almost 90 percent of their copulations, including when the females were not resisting. [13] A possible explanation for aggressive behaviors in primates is that it is a way for males to train females to be afraid of them and be more likely to surrender to future sexual advances. [1]
When a critically endangered orangutan was pregnant, the Dublin Zoo hatched a plan to teach her the maternal skills she'd need to care for her newborn.