Simia hoolock Skull Replica measures 3.5 inches. Simia hoolock Skull Replica is museum quality polyurethane resin cast. 2-part skull (separate cranium & jaw). Made in USA. Known as Western Hoolock Gibbon. Our precise skull can be used as a teaching tool, museum skull exhibit, home decor skull, or office decor skull.

The Western hoolock gibbon or Simia hoolock is a primate from the gibbon family, Hylobatidae.

The species is found in Assam, Mizoram & Meghalaya in India, Bangladesh and in Myanmar west of the Chindwin River.

The Hoolock hoolock is a small arboreal ape weighing a little over 13 lb. It exhibits sexual dichromatism: the adult male is always black, except for its prominent white eyebrows, while the adult females fur is gold or buff or brownish buff.

The Hoolock hoolock is found in good quality semi-deciduous/evergreen forest up to 4500 feet. Fruit comprises the majority of its diet, which also includes leaves, flowers, buds and a small amount of insects and spiders.

Like other gibbons, the Simia hoolock pairs produce a loud, elaborate song, usually sung as a duet from the forest canopy, in which younger individuals of the family group may join in.

The song includes an introductory sequence, an organising sequence, and a great call sequence, with the male also contributing to the latter.

Mootnick and Groves stated that hoolock gibbons do not belong in the genus Bunopithecus, and placed them in a new genus, Hoolock.

This genus was argued to contain two and later three distinct species which were previously thought to be subspecies: Hoolock hoolock, Hoolock leuconedys and Hoolock tianxing.

It was later found that there is a larger evolutionary distance between these three species and the white-handed gibbons than there is between bonobos and chimpanzees.

In India and Bangladesh the Simia hoolock is found where there is contiguous canopy, broad-leaved, wet evergreen and semi-evergreen forests dipterocarpus forest often mountainous.

The species is an important seed disperser; its diet includes mostly ripe fruits, with some flowers, leaves and shoots.

There are numerous threats to Simia hoolocks in the wild, and are now entirely dependent on human action for their survival.

Threats include habitat encroachment by humans, forest clearance for tea cultivation, the practice of jhuming (slash-and-burn cultivation), hunting for food, “medicine”, capture for trade, and forest degradation.

Over the last 30 to 40 years,  Simia hoolock numbers are estimated to have dropped from more than 100,000 to less than 5,000 individuals.

In 2009 it was considered to be one of the 25 most endangered primates, though it has been dropped from the later editions of the list.