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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.
The southern red muntjac (Muntiacus muntjak) is a deer species native to Southeast Asia. It was formerly known as the Indian muntjac or the common muntjac before the species was taxonomically revised to represent only populations of Sunda and perhaps Malaysia .
The tufted deer is a small deer, but still larger than most muntjac species. It stands at 50–70 centimetres (20–28 in) at the shoulder, and the weight varies from 17 to 30 kilograms (37 to 66 lb). [5] The tail is short at around 10 cm (3.9 in). The antler is only present in males and is extremely short, almost hidden by its long tuft of hair.
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 ...
The northern red muntjac occurs in twelve countries of south-central and south-east Asia including Pakistan, Bhutan, Myanmar, Nepal, India, Sri Lanka, Bangladesh, China, Cambodia, Laos, Thailand, and Vietnam. [1] It is also present in Hong Kong. Its presence in Malaysia is uncertain. [1] Muntjac at Tadoba National Park, India
The Gongshan muntjac (Muntiacus gongshanensis) [3] is a species of muntjac (a type of deer) living in the Gongshan mountains in northwestern Yunnan, southeast Tibet, Northeast India (especially in Arunachal Pradesh) and northern Myanmar. [4] Ongoing hunting is a major threat to its survival. While the population cannot be accurately counted ...
An African elephant in Tanzania, with visible tusks. Tusks are elongated, continuously growing front teeth that protrude well beyond the mouth of certain mammal species. They are most commonly canine teeth, as with narwhals, chevrotains, musk deer, water deer, muntjac, pigs, peccaries, hippopotamuses and walruses, or, in the case of elephants, elongated incisors.
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 ...