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Orangutans are believed to be one of the most intelligent animals on earth and closely related to humans. The fact that they are on the brink of extinction is a great source of worry for many ...
Deforestation is extremely harmful to orangutans because the forest is their habitat. As this deforestation continues, the orangutans will be exposed to humans more often. This is harmful because it leaves the orangutans vulnerable to poaching. [8] Logging first began occurring in the 1970s for the production of furniture and commercial ...
Homosexual behaviour has been recorded in the context of both affiliative and aggressive interactions. [66] Mother orangutan with young. Unlike females of other non-human great ape species, orangutans do not exhibit sexual swellings to signal fertility. [65]
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]
This decline is due the primates being hunted by humans for food, because the monkeys raid crops so they are killed, and to steal babies from mothers to sell into illegal pet trading rings. They ...
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.
Prior to this, scientists thought that only humans manufactured and used tools, and that this ability was what separated humans from other animals. [176] Chimpanzees have also been observed making "sponges" out of leaves and moss that suck up water. [186] Sumatran orangutans have been observed making and using tools.
This stage marks sexual maturity in males, yet these orangutans are still socially undeveloped and will still avoid contact with adult males. Finally, male Sumatran orangutans reach adulthood at 13 to 15 years of age. They are extremely large animals, weighing between 50 and 90 kilograms, roughly the weight of a fully grown human.