Dusky Langurs are usually found in tropical rainforest with Dipterocarp trees. They also inhabit coastal forests, riparian forests, botanical gardens, national parks, and even urban areas.
Being arboreal, their habitat preference are usually in the canopy level, where they predominantly feed on the leaves, fruits, seeds, flowers and tree bark too. Diurnal and folivores, Dusky Langurs are active in the day and swing from tree to tree to look for food. They mostly live in family groups of one alpha male, multiple females, juveniles and infants.
Can you spot the differences between the Dusky Langur living in the forest and those living near to urban area?
Dusky Langurs can consume up to 2 kg of food every day while weighing only 5-9 kg!”
The Dusky Langurs stomach are adapted to a folivorous diet, as their stomach system are build in with different gut sacs. In these sacs, plant fermentation takes place with the presence of cellulose-degrading bacteria and detoxification process of leaves consumed. This allows them to feed on a variety of plants and parts such as leaf petioles.
Dusky Langurs often observed to choose unripe fruits and young leaves. Over 120 species of plants have been recorded as food plants of Dusky Langurs in Penang.
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