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The Bornean orangutan diet is composed of over 400 types of food, including wild figs, durians (Durio zibethinus and D. graveolens), [29] leaves, seeds, bird eggs, flowers, sap, vines, [30] honey, fungi, spider webs, [30] insects, and, to a lesser extent than the Sumatran orangutan, bark.
A 2017 genome study found that the Bornean and Tapanuli orangutans diverged from Sumatran orangutans about 3.4 mya, and from each other around 2.4 mya. Millions of years ago, orangutans travelled from mainland Asia to Sumatra and then Borneo as the islands were connected by land bridges during the recent glacial periods when sea levels were ...
Borneo has own a wide variety of bird species. The geological history of Borneo is a major factor: long isolation of the island, broken during the last Ice age, when Borneo was connected to the continent of Asia, led to a combination of Asian and native species. There are about 420 species of birds and 37 are endemic to Borneo [4] [5]
The organization estimated there were around 104,700 Bornean orangutans at the time — a sharp decline from an estimated 288,500 animals in 1973. The numbers could drop to just 47,000 by 2025 ...
"Bornean Orangutans decreased by more than 60% between 1950 and 2010, and a further 22% decline is projected to occur between 2010 and 2025," the organization explains, which "equates to a loss of ...
An endangered Bornean orangutan baby has been welcomed into the world at Busch Gardens Tampa Bay in Florida. The baby orangutan was delivered by cesarean section on Saturday, weighing just over ...
A Neesia-eating orangutan will select a five-inch stick, strip off its bark, and then carefully collect the hairs with it. Once the fruit is safe, the ape will eat the seeds using the stick or its fingers. Although similar swamps can be found in Borneo, wild Bornean orangutans have not been seen using these types of tools.
Orangutans have a median life expectancy of 37.6 years. Dumplin is now the third-oldest Bornean female orangutan in the United States. Columbus Zoo holds 50th birthday party for Dumplin, one of ...