Sumatran orangutan Sumatran Orangutan Sumatran Orangutan Sumatran orangutans Sumatran Orangutan Sumatran Orangutan Sumatran Orangutan Sumatran orangutan 7300 are left in the wild World Wildlife Website Sumatran Orangutan Sumatran Orangutan Sumatran Orangutan Sumatran Orangutan Sumatran Orangutan Sumatran Orangutan: Photo Credit WWF according to WWF https://www.worldwildlife.org/species/sumatran-orangutan Sumatran Orangutan according to the WWF Sumatran Orangutans Sumatran Orangutan Sumatran orangutans depleting at an astonishing rate Sumatran Orangutan Sumatran Orangutan their arboreal Sumatran cousins Sumatran Orangutan World Wildlife Website their arboreal Sumatran cousins explains