The Siamang, native to Southeast Asia, is the largest of the gibbons with an arm length of 1.5 meters. Considered a lesser ape, gibbons are known for their remarkable gymnastic ability. Gibbons live an arboreal life, high above the forest floor. Their long arms have evolved to allow for a graceful, almost ballet-like movement as they swing from branch to branch. This specialized form of locomotion is referred to as Brachiating.nnSpecifications:nn1: 1 scalennPolyurethane resin castn2-part skull (separate cranium and jaw)nnSkull Length 14 cm (5.5 in.)nnOrigin: AsiannProduct of Bone ClonesnPlease be advised that this product is made-to-order and will require additional lead time. For further information about the availability and turnaround time of this item, please contact our customer service team at 1-800-659-SKULL.