Red Faced Uakari Skull measures 3.6 inches. The Red Faced Uakari Female Skull is museum quality polyurethane cast. Made in USA. Red Faced Uakari’s scientific name is Cacajoa calvus. Our precise skull can be used as a teaching tool, museum skull exhibit, home decor skull, or office decor skull. 2-part skull (separate cranium & jaw).

The Red Faced Uakari, Bald Uakari or Cacajoa calvus weighs between 6.1 and 7.6 lbs., with head and body lengths average 18.0 in. male and 17.3 in. female. The Red Faced Uakari has a long, shaggy coat ranging from white in color to red and its head is bald.

The tail is bob-like and rather short for a New World monkey about 5.9 inches at only half the length of the body and head combined. The Red Faced Uakari or Cacajoa calvus scarlet red face is due to the lack of skin pigments and plentiful capillaries that run under its facial tissue.

The Red Faced Uakari or Cacajoa calvus prefers to reside in seasonally flooded forests in the area of the Amazon River Basin, in the countries of Peru and Brazil. It is important that the Uakari is lives in the tree tops because of the flooding of the forests and the water rising to great heights during the rainy season.

During the dry season, the Red Faced Uakari or Cacajoa calvus returns to the ground to look for seeds and other food material. A study of the diet of the Uakari found it to consist of seeds, fruit, flowers, animal prey, and buds.

Its powerful lower jaw forms a pseudodental comb, which allows the Red Faced Uakari or Cacajoa calvus to open the hard surfaces of unripe fruits and eat the nuts that most other primates would not be able to open. It will also eat insects that happen to cross its path, however it does not specifically pursue this type of food.

The Red Faced Uakari or Cacajoa calvus can be found traveling up to 4.8 kilometers per day in multi-male and multi-female groups of 5 to 30 individuals, and even up to 100. It can be extrapolated from the general primate behavior of female philopatry that female uakaries are also philopatric. This means that males leave the natal group. The total size of the group’s home range is between 500 and 600 hectares. This requires efficient territorial defense mechanisms. A few of these include specific vocalizations, wagging of the tail, and erection of the hair.

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Additional information

Weight 3 lbs
Dimensions 3.6 in
Red Faced Uakari Facts:

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Pitheciidae
Subfamily: Pitheciinae
Genus: Cacajao
Type species: Simia melanocephalus
Conservation status: Vulnerable – A vulnerable species is one which has been categorized by the International Union for Conservation of Nature as likely to become endangered unless the circumstances that are threatening its survival and reproduction improve.


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