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.