What is the maximal age a Four-horned antelope reaches?
An adult Four-horned antelope (Tetracerus quadricornis) usually gets as old as 10.75 years.
Four-horned antelopes are around 207 days in the womb of their mother. When born, they weight 1.04 kg (2.29 lbs) and measure 36.8 cm (1′ 3″). As a member of the Bovidae family (genus: Tetracerus), their offspring is 1 babies per pregnancy. Fully grown, they reach a bodylength of 100 cm (3′ 4″).
As a reference: Usually, humans get as old as 100 years, with the average being around 75 years. After being carried in the belly of their mother for 280 days (40 weeks), they grow to an average size of 1.65m (5′ 5″) and weight in at 62 kg (137 lbs), which is obviously highly individual.
The four-horned antelope (Tetracerus quadricornis), or chousingha, is a small antelope found in India and Nepal. This antelope has four horns, which distinguish it from most other bovids, which have two horns (sparing a few such as the Jacob sheep). The sole member of the genus Tetracerus, the species was first described by French zoologist Henri Marie Ducrotay de Blainville in 1816. Three subspecies are recognised. The four-horned antelope stands nearly 55–64 centimetres (22–25 in) at the shoulder and weighs nearly 17–22 kilograms (37–49 lb). Slender with thin legs and a short tail, the four-horned antelope has a yellowish brown to reddish coat. One pair of horns is located between the ears, and the other on the forehead. The posterior horns are always longer than the anterior horns, which might be mere fur-covered studs. While the posterior horns measure 8–12 centimetres (3.1–4.7 in), the anterior ones are 2–5 centimetres (0.79–1.97 in) long.The four-horned antelope is diurnal (active mainly during the day). Though solitary by nature, four-horned antelopes may form loose groups of three to five –with one or more adults, sometimes accompanied by juveniles. This elusive antelope feeds on grasses, herbs, shrubs, foliage, flowers and fruits. It needs to drink water frequently; as such it stays in places near water sources. The breeding behaviour of the four-horned antelope has not been well studied. The age at which they reach sexual maturity and the season when mating occurs have not been understood well. Gestation lasts about eight months, following which one or two calves are born. They are kept concealed for the first few weeks of their birth. The young remain with the mother for about a year.Four-horned antelopes tend to inhabit areas with significant grass cover or heavy undergrowth, and avoid human settlements. Earlier common throughout deciduous forests in India, the antelope now occurs in widely disjunct, small populations. Most of the populations are in India, and lower numbers can be found in adjoining Nepal. The four-horned antelope is threatened by the loss of its natural habitat due to agricultural expansion. Moreover, the unusual four-horned skull and the horns have been a popular target for trophy hunters. The four-horned antelope is classified as Vulnerable by the International Union for the Conservation of Nature and Natural Resources (IUCN).
Animals of the same family as a Four-horned antelope
Not really brothers and sisters, but from the same biological family (Bovidae):
- Oribi becoming 15.75 years old
- Harvey’s duiker growing to a mass of 14.5 kgs (31.97 lbs)
- Bohor reedbuck becoming 18 years old
- Goitered gazelle becoming 20 years old
- Yellow-backed duiker becoming 17.25 years old
- Iberian ibex becoming 16 years old
- Nilgai becoming 21.67 years old
- Common tsessebe becoming 18 years old
- Markhor becoming 14 years old
- Japanese serow becoming 18.5 years old
Animals that reach the same age as Four-horned antelope
With an average age of 10.75 years, Four-horned antelope are in good companionship of the following animals:
- African clawless otter usually reaching 11 years
- Leadbeater’s possum usually reaching 11 years
- Common noctule usually reaching 12 years
- Red squirrel usually reaching 12 years
- Masoala fork-marked lemur usually reaching 12 years
- White-lined broad-nosed bat usually reaching 10.17 years
- Dice’s cottontail usually reaching 9 years
- Asian small-clawed otter usually reaching 10.08 years
- Hispaniolan solenodon usually reaching 11.33 years
- Black-footed cat usually reaching 12 years
Animals with the same number of babies Four-horned antelope
The same number of babies at once (1) are born by:
- Jentink’s duiker
- White-striped free-tailed bat
- Malayan porcupine
- Yellow-spotted rock hyrax
- Subantarctic fur seal
- Linnaeus’s two-toed sloth
- Ribbon seal
- Dusky leaf monkey
- Michoacan deer mouse
- Tenkile
Weighting as much as Four-horned antelope
A fully grown Four-horned antelope reaches around 19.19 kg (42.31 lbs). So do these animals:
- Thomson’s gazelle weighting 22.91 kilos (50.51 lbs) on average
- Bay duiker weighting 20 kilos (44.09 lbs) on average
- Pygmy brocket weighting 16.5 kilos (36.38 lbs) on average
- Thomson’s gazelle weighting 22.6 kilos (49.82 lbs) on average
- Fea’s muntjac weighting 19.9 kilos (43.87 lbs) on average
- Arabian tahr weighting 22.06 kilos (48.63 lbs) on average
- Peters’s duiker weighting 18.94 kilos (41.76 lbs) on average
- Arabian gazelle weighting 18.06 kilos (39.82 lbs) on average
- Gelada weighting 15.98 kilos (35.23 lbs) on average
- Ogilby’s duiker weighting 18.29 kilos (40.32 lbs) on average
Animals as big as a Four-horned antelope
Those animals grow as big as a Four-horned antelope:
- Springbok with 1.06 meter (3′ 6″)
- Peters’s duiker with 1.02 meter (3′ 4″)
- Roan antelope with 1.15 meter (3′ 10″)
- Goitered gazelle with 95.8 cm (3′ 2″)
- Proserpine rock-wallaby with 100 cm (3′ 4″)
- Steenbok with 82.4 cm (2′ 9″)
- Bay duiker with 84.9 cm (2′ 10″)
- Siamang with 82.4 cm (2′ 9″)
- Red-fronted gazelle with 88.5 cm (2′ 11″)
- North American porcupine with 83.7 cm (2′ 9″)