Its a 1:1 scale replica

Length: 12.8 cm / 5 in
Height: 9.6 cm / 3.6 in
Width: 8.5 cm / 3.1 in

The rhesus macaque (Macaca mulatta), colloquially rhesus monkey, is a species of Old World monkey. There are between six and nine recognized subspecies that are split between two groups, the Chinese-derived and the Indian-derived. Generally brown or grey in color, it is 47–53 cm (19–21 in) in length with a 20.7–22.9 cm (8.1–9.0 in) tail and weighs 5.3–7.7 kg (12–17 lb). It is native to South, Central, and Southeast Asia and has the widest geographic range of all non-human primates, occupying a great diversity of altitudes and a great variety of habitats, from grasslands to arid and forested areas, but also close to human settlements. Feral colonies are found in the United States, thought to be either released by humans or escapees after hurricanes destroyed zoo and wildlife park facilities

Length: 9″ ( 23.4cm)

The mandrill is a primate of the Old World monkey family. It is one of two species assigned to the genus Mandrillus, along with the drill. Both the mandrill and the drill were once classified as baboons in the genus Papio, but they now have their own genus, Mandrillus. Although they look superficially like baboons, they are more closely related to Cercocebus mangabeys. Mandrills are found in southern Cameroon, Gabon, Equatorial Guinea, and Congo. Mandrills mostly live in tropical rainforest and in very large groups. Mandrills have an omnivorous diet consisting mostly of fruits and insects. Their mating season peaks in July to September, with a corresponding birth peak in December to April.

This skull is 1:1 scale.

Length: 7 cm / 2.75 in
Height: 4.7 cm / 1.85 in
Depth: 4.4 cm / 1.73 in

Common squirrel monkey is the traditional common name for several small squirrel monkey species native to the tropical areas of South America. The term common squirrel monkey had been used as the common name for Saimiri sciureus before genetic research by Jessica Lynch Alfaro and others indicated S. scuireus covered at least 3 and possibly 4 species: the Guianan squirrel monkey (S. scuireus), Humboldt’s squirrel monkey (S. cassiquiarensis) and Collins’ squirrel monkey (S. collinsi). The Ecuadorian squirrel monkey (S. cassiquiarensis macrodon), generally regarded as a subspecies of Humboldt’s squirrel monkey, had also been sometimes proposed as a separate species that had originally been included within the term “common squirrel monkey.”

its a 1:1 scale replica

Length: 5.4 cm / 2.1 in
Height: 4.2 cm / 1.7 in
Depth: 3.8 cm / 1.5 in

Owl monkeys, also known as night monkeys or douroucoulis, are nocturnal New World monkeys of the genus Aotus, the only member of the family Aotidae. The genus comprises eleven species which are found across Panama and much of South America in primary and secondary forests, tropical rainforests and cloud forests up to 2,400 metres (7,900 ft). Night monkeys have large eyes which improve their vision at night, while their ears are mostly hidden, giving them their name Aotus, meaning “earless”.

Its a 1:1 scale replica

Length: 12.6 cm / 5 in
Height: 10.3 cm / 4.1 in
Depth: 7.5 cm / 3 in

Howler monkeys are among the largest of the New World monkeys. They are famous for their loud howls, which can travel 5 km through dense rain forest. These monkeys are native to South and Central American forests. Threats include human predation, habitat destruction, and capture for pets or zoo animals.