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Muntjac

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Muntjacs are a group of small deer belonging to the genus Muntiacus.

Muntiacus muntjak 50960281, crop
Muntiacus muntjak 50960281, crop

They are often called barking deer or rib-faced deer. These animals are native to the tropical regions of South Asia and Southeast Asia. They thrive in habitats with very dense vegetation. This includes rainforests, monsoon forests, and areas near water sources. They also live in the lower Himalayas, specifically the Terai regions of Nepal and Bhutan.

BarkingDeer
BarkingDeer

Understanding these deer helps scientists learn about how species adapt to different environments.

One of the most striking features of male muntjacs is their specialized teeth. While they have short antlers that can regrow, they primarily use "tusks" to defend territory. These tusks are actually long, downward-pointing canine teeth.

Barking deer skeleton
Barking deer skeleton

This feature is quite rare among native British wild deer. It can help people tell a muntjac apart from an immature native deer. Although these tusks look like those of the musk deer or water deer, muntjacs are not closely related to them. Each of these animals has a different tooth shape.

Muntjacs also use scent glands to communicate and mark their territory. They possess several different types of glands for this purpose. Facial glands are used to mark the ground or other individuals. These glands often open during urination, defecation, or social displays. Some facial glands open involuntarily due to muscle contractions. However, the preorbital glands located near the eyes work differently.

Barking Deer - Kolkata 2011-05-03 2409
Barking Deer - Kolkata 2011-05-03 2409

These glands can be opened voluntarily. Animals can even evert them, which means pushing the glandular tissue outward. Even very young fawns are capable of this action.

There are 14 recognized species within the Muntiacus genus.

Muntiacus reevesi 2024-05-24 JM 5D412904 2
Muntiacus reevesi 2024-05-24 JM 5D412904 2

These species include the Bornean yellow muntjac and the Sumatran muntjac. Other species are the Hairy-fronted muntjac, also known as the black muntjac. The genus also contains the leaf muntjac and the giant muntjac. The conservation status of these species varies greatly. Most are listed as "least-concern" or "Data Deficient" by the IUCN. However, others face much higher risks. The black muntjac is vulnerable, the Bornean yellow muntjac is near threatened, and the giant muntjac is critically endangered.

Scientists study muntjacs closely because of their unique genetics. They show dramatic variations in their chromosomes, which are the structures that carry genetic information.

Metaphase spread of the Indian muntjac (Muntiacus muntjak vaginalis)
Metaphase spread of the Indian muntjac (Muntiacus muntjak vaginalis)

For example, the Southern red muntjac has the lowest recorded chromosome number of any mammal. A male of this species has a diploid number of only 7. A female has only 6 chromosomes. In contrast, the Reeves's muntjac has a much higher diploid number of 46. These differences make them vital for evolutionary studies.

The history of the muntjac is quite long. Fossil remains suggest they began appearing between 15 and 35 million years ago. These ancient remains have been found in Miocene deposits in France, Germany, and Poland. The name "muntjac" has an interesting linguistic history. It is a Latinized form of a Dutch word. That Dutch word was originally borrowed from the Sundanese language. The first official Latin name was recorded in 1780 by Zimmerman.

Some muntjac populations live far from their original Asian homes. Reeves's muntjac is considered an invasive species in the United Kingdom and parts of Japan. In the UK, these deer descended from animals that escaped from the Woburn Abbey estate around 1925. Since then, they have expanded rapidly. They are now found in most English counties and in Wales. They appeared in Northern Ireland in 2009 and the Republic of Ireland in 2010. Because they live in tropical regions, they do not have a seasonal rut. This means they can mate at any time of the year. This behavior remains even in the cooler, temperate countries where they have moved.

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🖼️ Images & Media (6)
File:Muntiacus muntjak 50960281, crop.jpg
Muntiacus muntjak 50960281, crop.jpg
File:Muntiacus reevesi 2024-05-24 JM 5D412904 2.jpg
Muntiacus reevesi 2024-05-24 JM 5D412904 2.jpg
File:Barking deer skeleton.jpg
Barking deer skeleton.jpg
File:BarkingDeer.jpg
BarkingDeer.jpg
File:Barking Deer - Kolkata 2011-05-03 2409.JPG
Barking Deer - Kolkata 2011-05-03 2409.JPG
File:Metaphase spread of the Indian muntjac (Muntiacus muntjak vaginalis).jpg
Metaphase spread of the Indian muntjac...
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