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Muntjac are of great interest in evolutionary studies because of their dramatic chromosome variations and the recent discovery of several new species. The Southern red muntjac ( M. muntjak ) is the mammal with the lowest recorded chromosome number: The male has a diploid number of 7, the female only 6 chromosomes.
Male muntjacs have short antlers, about 10 cm (3.9 in) long, that protrude from long body hair-covered pedicels above the eyes. Females have tufts of fur and small bony knobs instead of antlers. Males also have elongated 2–4 cm (0.79–1.57 in) long, slightly curved upper canines, which can be used in male-male conflicts and inflict serious ...
Also, Reeves's muntjac escaped a zoo on Izu Ōshima in 1970 when a fence fell due to a typhoon. They have inflicted severe damage to the local ashitaba plantations. [22] A muntjac eradication effort on Izu Ōshima was undertaken in 2007–2014 but failed, and as of 2014, at least 11,000 individuals exist and have a yearly population growth rate ...
Fea's muntjac (Muntiacus feae) or the Tenasserim muntjac, is a rare species of muntjac native to southern Myanmar and Thailand. It is a similar size to the common muntjac (adult weight is 18 – 21 kg (40 – 46 lb)). It is diurnal and solitary, inhabiting upland evergreen, mixed or shrub forest (at an altitude of 2500 m (8200')) with a diet of ...
Articles relating to the Muntjac, small deer of the genus Muntiacus native to South Asia and Southeast Asia. Muntjacs are thought to have begun appearing 15–35 million years ago, with remains found in Miocene deposits in France, Germany and Poland.
The specimen is slightly smaller than the common muntjac and DNA testing has shown it to be distinct from recently discovered muntjac species. It is a subspecies of Fea's muntjac, whose home range is mountains further northwest separated by lower land. However, without further evidence, the exact position of Roosevelt's muntjac cannot be stated.
The X and Y chromosomes of the hairy-fronted muntjac are very different from other therians, and represent an early stage in the evolution of a new sex-determination system. Females have chromosome number 2n = 8, while males have 2n = 9. A recent chromosomal rearrangement, within the past 500,000 years, fused the X with one of the autosomes ...
The preorbital gland is a paired exocrine gland found in many species of artiodactyls, which is homologous to the lacrimal gland found in humans. These glands are trenchlike slits of dark blue to black, nearly bare skin extending from the medial canthus of each eye.