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A 2008 study of two orangutans at the Leipzig Zoo showed orangutans may practise "calculated reciprocity", which involves an individual aiding another with the expectation of being paid back. Orangutans are the first nonhuman species documented to do so.
Chantek (December 17, 1977 – August 7, 2017), [1] born at the Yerkes National Primate Research Center in Atlanta, Georgia, was a male hybrid Sumatran/Bornean orangutan [2] who demonstrated a number of intellectual skills, including the use of several signs adapted from American Sign Language (ASL).
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]
An orangutan being cared for by the Borneo Orangutan Survival (BOS) Foundation threw a tantrum when he wasn’t allowed to have more than his rationed amount of milk.This video of “Big Boy Beni ...
Orangutans are the most solitary of the great apes, with social bonds occurring primarily between mothers and their dependent offspring, who stay together for the first two years. Fruit is the most important component of an orangutan's diet, however, the apes will also eat vegetation, bark, honey, insects and even bird eggs.
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Great ape personhood is a movement to extend personhood and some legal protections to the non-human members of the great ape family: bonobos, chimpanzees, gorillas, and orangutans. [ 1 ] [ 2 ] [ 3 ] Advocates include primatologists Jane Goodall and Dawn Prince-Hughes , evolutionary biologist Richard Dawkins , philosophers Paola Cavalieri and ...
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.