Canis hallstromi Skull is an exact replica that is museum quality polyurethane cast. 2-part skull (separate cranium and jaw).

The New Guinea singing dog or Canis hallstromi dog is an ancient (basal)lineage of dog found in the New Guinea Highlands, on the island of New Guinea.

Once considered to be a separate species in its own right, under the name Canis hallstromi, it is closely related to the Australian dingo. The Hallstrom’s Dog is relatively unusual among canines; it is one of the few to be considered “barkless” (hence its common name of “singing dog”), and known for its unusual “yodel”-like style of vocalizing.

In 2019, a workshop hosted by the IUCN/SSC Canid Specialist Group considered the New Guinea singing dog and the dingo to be feral dogs Canis familiaris, and therefore should not be assessed for the IUCN Red List.

In 2020, a nuclear genome study indicates that the highland wild dogs from the base of Puncak Jaya, within the Tembagapura district in the Mimika Regency of Papua, Indonesia, were the population from which captive New Guinea singing dogs were derived.

The limbs and spine of the Canis hallstromi are very flexible and they can spread their legs sideways to 90°, comparable to the Norwegian Lundehund. They can also rotate their front and hind paws more than domestic dogs, which enables them to climb trees with thick bark or branches that can be reached from the ground.

The eyes, which are highly reflective, are triangular (or almond-shaped) and are angled upwards from the inner to outer corners with dark eye rims. Eye color ranges from dark amber to dark brown.

Their eyes exhibit a bright green glow when lights are shone on them in low light conditions. There are two features which researchers believe allow New Guinea singing dogs to see more clearly in low light.

One is that of their pupils, which open wider and allow in more light than in other dog varieties. The other is that they possess a higher concentration of cells in the tapetum.

Canis hallstromi dogs have erect, pointed, fur-lined ears. As with other wild dogs, the ears ‘perk,’ or lay forward, which is suspected to be an important survival feature for the form. The ears can be rotated like a directional receiver to pick up faint sounds. Their tails are bushy, long enough to reach the hock, free of kinks, and have a white tip.

Pups are born with a dark chocolate brown pelt with gold flecks and reddish tinges, which changes to light brown by the age of six weeks. Adult coloration occurs around four months of age.

For adult dogs, the colors brown, black, and tan have been reported, all with white points. The sides of the neck and zonal stripes behind the scapula are golden. Black and very dark guard hair is generally lightly allocated over the hair of the spine, concentrating on the back of the ears and the surface of the tail over the white tip.

The muzzle is always black on young dogs. Generally, all colors have white markings underneath the chin, on the paws, chest and tail tip. About one third also have white markings on the muzzle, face and neck. By 7 years of age, the black muzzle begins to turn grey.

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