The orangutan is the world’s largest tree-climbing mammal. It has an ape-like shape, shaggy reddish fur and grasping hands and feet.Habitat destruction and fragmentation is by far the greatest threat to orangutans. Huge tracts of forest have been cleared from activities such as legal/illegal logging to land being converted to palm plantations or other farmlands. These activities can cause another serious threat- fires. In partnership with both international and local groups (including research institutions, universities, government institutions and local communities), WWF has been working for orangutan conservation since the 1970s. Our work includes conserving orangutan habitats, promoting sustainable forestry and agriculture, and halting pet trade.