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Indian hog deer facts for kids

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Indian hog deer
Indian hog deer.jpg
Indian hog deer in Phu Khieo Wildlife Sanctuary, Thailand
Conservation status
Scientific classification
Genus:
Hyelaphus
Species:
porcinus
Axis porcinus range map.png

The Indian hog deer (Hyelaphus porcinus) is a small deer native to the Indo-Gangetic Plain in Pakistan, northern India, Nepal, Bangladesh to mainland Southeast Asia. It also occurs in western Thailand and southwestern Yunnan Province in China; introduced populations exist in Australia.

Its name derives from the hog-like manner in which it runs through forests (with its head hung low), to ease ducking under obstacles instead of leaping over them, like most other deer.

Description

Hog deer in Terai grassland
Young hog deer male in Assam

A mature hog deer stag stands about 70 cm at the shoulder, and weighs approximately 50 kg; hinds are much smaller, standing about 61 cm and weighing in the vicinity of 30 kg. They are very solidly built, with a long body and relatively short legs; the line of the back slopes upward from the shoulders to a high rump. The ears are rounded; older animals tend to become light coloured in the face and neck. The Indian hog deer's coat is quite thick, and generally a uniform dark-brown in winter, except for the underparts of the body and legs, which are lighter in colour. During late spring, the change to a summer coat of rich reddish brown commences, although this may vary between individuals. Many hog deer show a dark dorsal stripe extending from the head down the back of the neck, and along the spine. In summer, there is usually a uniform row of light-coloured spots along either side of the dorsal stripe from the shoulders to the rump. The tail is fairly short and brown, but tipped with white. The underside of the tail is white, and the deer can fan the white hairs out in a distinctive alarm display.

Indian hog deer have preorbital glands on the face just below the eyes and metatarsal glands located high on the side of the rear legs. Pedal glands are located between the cleaves or toes of the hind hooves.

The antlers of a mature hog deer stag are typically three tined-brow tine, with a solid main beam terminating in inner and outer top tines. However, antlers with more points are not uncommon. The distinctive features of typical hog deer antlers are the acute angle between the brow tine and main beam, and the fact that the inner tops tend to be short and angle back from the main beam and across towards the opposite antler.

Behaviour and ecology

Indian Hog Deer
Female suckling fawn in Kaziranga, India

The Indian hog deer is gregarious only when conditions are favorable and do not form a "unit" at these times, fleeing in different directions rather than in a herd. When alarmed, hog deer make a whistling vocalization or a warning bark. Home ranges vary widely in size, but average about 0.70 km². Males are aggressive, and may become territorial at low population densities, marking the boundaries with glandular secretions. During the rut, males gather in open meadows, pawing the ground during antagonistic encounters. Harems are not created, with males courting and defending a single female at any given time. Unlike many other deer species, hog deer do not have a rutting call. Population densities may be as low as 0.1 animals per square kilometer in riverine valleys, rising to over 19 individuals per square kilometer in grassy flood plains.

Predators

The tiger, the leopard, and the clouded leopard are known predators of the Indian hog deer.

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