Guest scientist post by: Marc Ancrenaz, PhD, HUTAN, a Woodland Park Zoo Partner for Wildlife Courtesy of HUTAN. Orangutans are now one step closer to extinction. Based on an assessment led by Borneo Futures, scientists from the International Union for Conservation of Nature (IUCN) have officially downgraded the status of the orangutans living in Borneo to Critically Endangered , the last step before reaching the dreadful status of Extinct in the Wild. Scientists have proven that the number of orangutans will decline by about 80% between 1950 and 2025 given current development plans by the governments of Indonesia and Malaysia. These numbers are hard to fathom. To put them in perspective, an 80% decline is equivalent to losing four out of five people you know ; it is equivalent to the disappearance of a staggering six billion of the current global human population in 75 years with no new births. Actually, many populations of orangutans have already disappeared in Borne