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Mandrillus leucophaeus skull Both species of Mandrillus develop extremely large muzzles, prominent nasal ridges and paranasal swelling (swelling in the area adjacent to the nostrils). The size and colour of the paranasal swellings correlate to male dominance and rank, while the size of nasal ridges is a way of attracting mates. [ 18 ]
The drill is a short-tailed monkey up to 70 cm (28 in) long, similar in appearance to the mandrill, but lacks the bright blue and red on the face of that species. It has high sexual dimorphism in weight, with males weighing up to 20 kg (44 lb) and females up to 12.5 kg (28 lb). [4] A close-up of face. The body is overall a dark grey-brown.
The mainland drill (Mandrillus leucophaeus leucophaeus) is a subspecies of the endangered drill. It is distinguished by ringed yellow and black coloring on its crown, and is otherwise similar to the Bioko drill.
The Bioko drill (Mandrillus leucophaeus poensis) is a subspecies of the drill, an Old World monkey. It is endemic to Bioko Island, Equatorial Guinea, [4] located off the west coast of Africa. [5] The drill is one of the largest monkey species, and is considered endangered. [5]
The word mandrill is derived from the English words man and drill—the latter meaning ' baboon ' or ' ape ' and being West African in origin—and dated to 1744. [3] [4] [5] The name appears to have originally referred to chimpanzees. [6] The first scholar to record the name for the colorful monkey was Georges-Louis Buffon in 1766.
A FBI document obtained by Wikileaks details the symbols and logos used by pedophiles to identify sexual preferences. According to the document members of pedophilic organizations use of ...
The binomial name often reflects limited knowledge or hearsay about a species at the time it was named. For instance Pan troglodytes, the chimpanzee, and Troglodytes troglodytes, the wren, are not necessarily cave-dwellers. Sometimes a genus name or specific descriptor is simply the Latin or Greek name for the animal (e.g. Canis is Latin for ...
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