When you see our Sumatran orangutans in Monsoon Forest remember that the survival of this beautiful species is in the balance and without continued conservation work it could become the first 'Great Ape' to become extinct in the wild.

In the past, much of their habitat has been destroyed for logging and agriculture development. There are now thought to be only around 6,500 to 14,600 of these wonderful creatures remaining.

Now, the biggest threat in the wild is the loss of their habitat to palm oil plantations and we're at the forefront of the battle to save them. We're working alongside our partners in South East Asia to protect the largest orangutan population in the Malaysian state of Sabah.

Orangutans are the only non-African 'Great Ape'. They once lived all over Asia but now only exist on Sumatra and Borneo.

Sumatran orangutans differ from their Bornean relatives in a number of ways. Sumatran orangutans are a lighter orange – cinnamon colour and are more slender in build. In male Sumatran orangutans, they have flatter check flanges (cheek pads).

You'll be amazed at how graceful and agile our Sumatran orangutans move. In the wild they sway from tree limb to tree limb (the technical term is an orthograde clamber) and the research we've done on this behaviour helped us design their habitat in a way that helps stimulate their natural behaviours with fixed trees and hanging webbing.

Puluh, our spectacular male, has fathered seven, including Indah, born in 2008, Tripa in October 2012 and Tuti, born in December 2012 to mum Subis.

You can help us to do everything we can to protect the future of this amazing species - find out more on Act for Wildlife here.

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Interesting facts

IUCN Status: Critically Endangered

Where they live:  Island of Sumatra, Southeast Asia

Habitat: Tropical and subtropical moist broadleaf forests in the lowlands as well as mountainous areas up to an elevation of 1500m.

Size: Up to 1.4m tall.

Weight: Up to 90kg

Threats:  Widespread habitat loss for agricultural development, particularly for palm plantations. Habitat destruction and fragmentation caused by logging. Severe droughts and loss of habitat to forests fires due to increasing incidence of the El Niño climatic event. Hunting for the bushmeat trade, traditional medicine, or the pet trade

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