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Wild chimpanzees can charge at females, shake branches, hit, slap, kick, pound, drag, and bite them. Orangutans are among the most forceful of mammals. Bornean orangutans (Pongo pygmaeus) exhibited aggression in almost 90 percent of their copulations, including when the females were not resisting. [13]
Orangutans communicate with various vocals and sounds. Males will make long calls, both to attract females and to advertise themselves to other males. [40] These calls have three components; they begin with grumbles, peak with pulses and end with bubbles.
Some orangutans also react with laughter at magic tricks performed by humans. [ 3 ] [ 4 ] This behavior is documented in both wild and captive chimpanzees. Chimpanzee laughter is not readily recognizable to humans as such, because it is generated by alternating inhalations and exhalations that sound more like breathing and panting. [ 5 ]
Sumatran orangutans spend far less time feeding on the inner bark of trees. Wild Sumatran orangutans in the Suaq Balimbing swamp have been observed using tools. [9] An orangutan will break off a tree branch that is about a foot long, snap off the twigs and fray one end with its teeth. [10]
An orangutan appeared to treat a wound with medicine from a tropical plant— the latest example of how some animals attempt to soothe their own ills with remedies found in the wild, scientists ...
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He wants to do it very, very good." [5] Smits quickly saw that protecting orangutans in their habitat not only benefits orangutans but also the environment, biological diversity, the poor in Borneo and all the world's people. The activities of the Borneo Orangutan Survival Foundation expanded from rescuing, rehabilitating and releasing ...
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 ...
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