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Post by King Kodiak on Feb 8, 2020 13:18:04 GMT -5
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Post by OldGreenGrolar on Dec 15, 2020 23:58:21 GMT -5
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Post by brobear on Jan 23, 2021 15:47:38 GMT -5
Orangutan - genus Pongo. 1- Bornean orangutan (P. pygmaeus, with three subspecies) 2- Sumatran orangutan (P. abelii) 3- Tapanuli orangutan (P. tapanuliensis)
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Post by brobear on Jan 24, 2021 13:43:07 GMT -5
en.wikipedia.org/wiki/Orangutan Orangutans (genus Pongo) are great apes native to Indonesia and Malaysia. They are found in the rainforests of Borneo and Sumatra, but during the Pleistocene they ranged throughout Southeast Asia and South China. Classified in the genus Pongo, orangutans were originally considered to be one species. From 1996, they were divided into two species: the Bornean orangutan (P. pygmaeus, with three subspecies) and the Sumatran orangutan (P. abelii). In 2017, a third species, the Tapanuli orangutan (P. tapanuliensis), was identified. The orangutans are the only surviving species of the subfamily Ponginae, who split from humans, chimpanzees and gorillas 19.3 to 15.7 million years ago (mya). The most arboreal of the great apes, orangutans spend most of their time in trees. They have proportionally long arms and short legs and their hair is reddish-brown. Adult males may develop distinctive cheek pads or flanges and make long calls that attract females and intimidate rivals; younger males do not and resemble adult females. Orangutans are the most solitary of the great apes, social bonds occurring primarily between mothers and their dependent offspring, who remain together for the first two years. Fruit is the most important component of an orangutan's diet, but they will also eat vegetation, bark, honey, insects and bird eggs. They can live over 30 years both in the wild and in captivity. Orangutans are among the most intelligent primates. They use a variety of sophisticated tools and construct elaborate sleeping nests each night from branches and foliage. The apes' learning abilities have been studied extensively. There may be distinctive cultures within populations. Orangutans have been featured in literature and art since at least the 18th century, particularly in works which comment on human society. Field studies of the apes were pioneered by primatologist Birutė Galdikas and they have been kept in captive facilities around the world since at least the early 19th century. All three orangutan species are considered critically endangered. Human activities have caused severe declines in populations and ranges. Threats to wild orangutan populations include poaching, habitat destruction because of palm oil cultivation, and the illegal pet trade. Several conservation and rehabilitation organisations are dedicated to the survival of orangutans in the wild.
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Post by OldGreenGrolar on Jan 31, 2021 8:00:12 GMT -5
Reply to the op. Looks like the orang utan does have a kind heart.
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Post by brobear on Feb 14, 2021 2:41:36 GMT -5
orangutan.org/orangutan-facts/quick-orangutan-facts-figures/ Orangutans’ arms stretch out longer than their bodies – up to 8 ft. from fingertip to fingertip in the case of very large males. In Malay orang means “person” and utan is derived from hutan, which means “forest.” Thus, orangutan literally means “person of the forest.” Orangutans have tremendous strength, which enables them to brachiate and hang upside-down from branches for long periods of time to retrieve fruit and eat young leaves. For the first few years of his/her life, a young orangutan holds tight to his/her mother’s body as she moves through the forest canopy.
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Post by King Kodiak on Feb 14, 2021 9:49:29 GMT -5
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Post by King Kodiak on Feb 18, 2021 20:59:37 GMT -5
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Post by brobear on Apr 6, 2021 3:01:20 GMT -5
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Post by OldGreenGrolar on Apr 18, 2021 1:49:18 GMT -5
Apes do make good fathers. This male orang utan above is a good example.
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Post by brobear on May 19, 2021 5:30:50 GMT -5
www.sciencedaily.com/releases/2021/05/210513084950.htm Orangutan finding highlights need to protect habitat. Iconic great apes in Borneo lost muscle during fruit shortages. Wild orangutans are known for their ability to survive food shortages, but scientists have made a surprising finding that highlights the need to protect the habitat of these critically endangered primates, which face rapid habitat destruction and threats linked to climate change.
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Post by brobear on May 20, 2021 4:03:06 GMT -5
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Post by brobear on May 21, 2021 5:55:06 GMT -5
animals.sandiegozoo.org/animals/orangutan Orangutans have the slowest breeding rate of all mammals. They reproduce only every seven or eight years, the longest interval of all land mammals. Orangutan females usually have their first baby at age 12 to 15, which is late compared to other mammals. Males don’t reach maturity until they are about 15 years old.
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Post by brobear on May 21, 2021 5:58:49 GMT -5
a-z-animals.com/animals/bornean-orang-utan/ Historically Bornean Orang-utans would hardly ever come down to the ground in fear of being preyed upon by large carnivores like Tigers, Bears and Clouded Leopards but with the extinction of the Tiger particularly throughout much of the island males are known to spend around 5% of their time on the forest floor. However, 40,000 years ago a new threat emerged in the form of modern Humans that hunted the Bornean Orang-utan to extinction in numerous parts of their once vast natural range. Today they are protected by law but infants are still captured for the exotic pet trade and the mothers are often killed in the process. The biggest threat though to Borneo’s remaining Orang-utan populations is habitat loss in the form of deforestation for logging or to clear land for farming and agriculture, primarily to make way for palm oil plantations. *Quote: "Historically Bornean Orang-utans would hardly ever come down to the ground in fear of being preyed upon by large carnivores like Tigers, Bears and Clouded Leopards..." *So... do sun bears prey upon orangutans? I wouldn't think so. As for clouded leopards, ( IMO ) only juvenile orangutans.
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Post by brobear on Jul 15, 2021 0:34:00 GMT -5
journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3001173 Immature wild orangutans acquire relevant ecological knowledge through sex-specific attentional biases during social learning As a part of growing up, immature orangutans must acquire vast repertoires of skills and knowledge, a process that takes several years of observational social learning and subsequent practice. Adult female and male orangutans show behavioral differences including sex-specific foraging patterns and male-biased dispersal. We investigated how these differing life trajectories affect social interest and emerging ecological knowledge in immatures. We analyzed 15 years of detailed observational data on social learning, associations, and diet repertoires of 50 immatures (16 females and 34 males), from 2 orangutan populations. Specific to the feeding context, we found sex differences in the development of social interest: Throughout the dependency period, immature females direct most of their social attention at their mothers, whereas immature males show an increasing attentional preference for individuals other than their mothers. When attending to non-mother individuals, males show a significant bias toward immigrant individuals and a trend for a bias toward adult males. In contrast, females preferentially attend to neighboring residents. Accordingly, by the end of the dependency period, immature females show a larger dietary overlap with their mothers than do immature males. These results suggest that immature orangutans show attentional biases through which they learn from individuals with the most relevant ecological knowledge. Diversifying their skills and knowledge likely helps males when they move to a new area. In sum, our findings underline the importance of fine-grained social inputs for the acquisition of ecological knowledge and skills in orangutans and likely in other apes as well.
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