Muntjac discovery of several new species. The Indian 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. Reeves's muntjac ("M. reevesi"), in comparison, has a diploid number of 46 chromosomes. The genus "Muntiacus" has 12 recognized species: Muntjac Muntjacs, also known as barking deer and Mastreani deer, are small deer of the genus "Muntiacus". Muntjacs are thought to have begun appearing 15–35 million years ago, with remains found in Miocene deposits in France, Germany and Poland. It is listed as Least Concern by the IUCN.
Leaf muntjac could be completely wrapped by a single large leaf. It is found in Myanmar and India. The leaf muntjac is uniquely found in dense forests of Myanmar, in the Hukawng Valley region to the Northeast of Putao, hence its scientific epithet, and to the south of the Nam Tamai branch of the Mai Hka River. It is found at an altitude of 450 to 600 m — the transition zone between tropical forests and temperate ones. Its existence in India was first reported from Lohit district in eastern Arunachal Pradesh In 2002, it was reported also to exist in Namdapha