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Skull of male mandrill, showing the long canines and ridged bone swellings. The mandrill has a stocky body with a large head and muzzle, as well as a short and stumpy tail. [19] The limbs are evenly sized and the fingers and toes are more elongated than those in baboons, [20] with a more opposable big toe on the feet. [21]
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 ]
A skull. 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.
Jasper is the second mandrill born at the Fort Worth Zoo in nearly three decades, following his sister, Ruby, who was born in January. Jasper was born on Sept. 13, weighing in at just two pounds ...
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.
Extant primates exhibit a broad range of variation in sexual size dimorphism (SSD), or sexual divergence in body size. [4] It ranges from species such as gibbons and strepsirrhines (including Madagascar's lemurs) in which males and females have almost the same body sizes to species such as chimpanzees and bonobos in which males' body sizes are larger than females' body sizes.
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]
NGC 2467, nicknamed the "Skull and Crossbones Nebula", [3] is a star-forming region whose appearance has occasionally also been likened to that of a colorful mandrill. It includes areas where large clouds of hydrogen gas incubate new stars. [ 4 ]