With respect to the Western Hoolock Gibbons, which of the following statements is/are correct? 1. A Sanctuary in North-east India is home to this ape species listed as Endangered in the International Union for Conservation of Nature (IUCN) Red List. 2. They have specialized brachiation and can easily swing between trees. 3. They possess a strong and heavy build like gorillas, yet are remarkably agile tree climbers. Select the answer using the code given below:

With respect to the Western Hoolock Gibbons, which of the following statements is/are correct? 1. A Sanctuary in North-east India is home to this ape species listed as Endangered in the International — UPSC Prelims 2026 Answer & Explanation

Environment & Ecology2026

With respect to the Western Hoolock Gibbons, which of the following statements is/are correct?

A Sanctuary in North-east India is home to this ape species listed as Endangered in the International Union for Conservation of Nature (IUCN) Red List.
They have specialized brachiation and can easily swing between trees.
They possess a strong and heavy build like gorillas, yet are remarkably agile tree climbers.

Select the answer using the code given below:

Explanation

The correct option is 1 and 2. The Western Hoolock Gibbons, listed as Endangered by the IUCN, are indeed found in protected areas like the Hoollongapar Gibbon Sanctuary in Assam, India. They are adapted for an arboreal lifestyle and exhibit specialized brachiation, allowing them to swing skillfully between trees, showcasing their specialized morphology for tree-dwelling habitats. However, they do not possess a strong and heavy build like gorillas; instead, they are more slender and agile, which is why option 3 is incorrect. Understanding these characteristics is essential for recognizing the ecological and conservation significance of this species, crucial topics in UPSC environmental studies.

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