HABITAT : Recent studies in Java suggest that these monkeys have adapted to the loss of natural forest by feeding on the leaves of teak trees in commercial plantations.
DIET : These animals have a natural diet which includes large quantities of leaves. These might seem to be the ideal food for forest-living animal, but they have several disadvantages - in particular, they are not very nutritious, and often contain powerful toxins. Leaf-eating monkeys have developed a specialised digestive system to cope with these problems; like cattle and sheep, they have complex stomachs containing bacteria to break down the leaves and neutralise the toxins. Their stomachs also need to be large: in some species the stomach contents can make up more than a quarter of the total body weight, giving them a distinctly pot-bellied appearance!
CHARACTERISTICS : There are two colour forms, a black and a brown form. Most of the groups at Howletts and have a variety of individuals. Young Javan langurs have a coat colour different from that of their parents: they are bright apricot when born and acquire the darker adult coloration at three to five months old. Langurs are very agile. They swing, hang, and leap through the branches of trees high above the ground. Leaps can be up to 10 feet!
ENDANGERED STATUS & CONVSERVATION : Javan Langurs are very rarely seen in zoos; they have been kept at Howletts since 1984, and we are proud to say that over 100 have been bred here, some of them third-generation Howletts-born animals.!