http://www.orangutan-world.com http://www.orangutan-world.com/humans-and-orangutans.html Humans and orangutans, including orangutan research, orangutans in captivity and orangutans in culture http://www.orangutan-world.com/humans-and-orangutans.html http://www.orangutan-world.com/orangutan-communication.html The issue of orangutan communication is one that many people find to be interesting. They have an assortment of both verbal and non verbal methods that they use for this purpose. http://www.orangutan-world.com/orangutan-communication.html http://www.orangutan-world.com/bornean-orangutan.html One of only two species of orangutans, the Bornean Orangutan is the largest of the two. The males are larger than the females which is common among the great apes. http://www.orangutan-world.com/bornean-orangutan.html http://www.orangutan-world.com/sumatran-orangutan.html The smaller of the two species, the Sumatran orangutan is very strong. A full grown male is approximately 200 pounds and 4 and a half feet tall. http://www.orangutan-world.com/sumatran-orangutan.html http://www.orangutan-world.com/orangutan-species.html Researchers believe that many species of orangutans once existed. Unfortunately only two of them have been able to successfully continue to evolve and last until now. http://www.orangutan-world.com/orangutan-species.html