What is the maximal age a Nilgai reaches?
An adult Nilgai (Boselaphus tragocamelus) usually gets as old as 21.67 years.
Nilgais are around 248 days in the womb of their mother. When born, they weight 5.88 kg (12.96 lbs) and measure 6.27 meter (20′ 7″). As a member of the Bovidae family (genus: Boselaphus), their offspring is 1 babies per pregnancy. Fully grown, they reach a bodylength of 2 meter (6′ 7″).
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 nilgai or blue bull (; literally meaning “blue bull”; Boselaphus tragocamelus) is the largest Asian antelope and is ubiquitous across the northern Indian subcontinent. The sole member of the genus Boselaphus, the species was described and given its binomial name by German zoologist Peter Simon Pallas in 1766. The nilgai stands 1–1.5 metres (3.3–4.9 ft) at the shoulder; males weigh 109–288 kilograms (240–635 lb), and the lighter females 100–213 kilograms (220–470 lb). A sturdy thin-legged antelope, the nilgai is characterised by a sloping back, a deep neck with a white patch on the throat, a short crest of hair along the neck terminating in a tuft, and white facial spots. A column of pendant coarse hair hangs from the dewlap ridge below the white patch. Sexual dimorphism is prominent – while females and juveniles are orange to tawny, adult males have a bluish-grey coat. Only males possess horns, 15–24 centimetres (5.9–9.4 in) long.The nilgai is diurnal (active mainly during the day). The animals band together in three distinct kinds of groups: one or two females with young calves, three to six adult and yearling females with calves, and all-male groups with two to 18 members. Typically tame, the nilgai may appear timid and cautious if harassed or alarmed; it flees up to 300 metres (980 ft)-or even 700 metres (2,300 ft), galloping away from the source of danger. Herbivores, nilgai prefer grasses and herbs, though they commonly eat woody plants in the dry tropical forests of India. Females become sexually mature by two years, while males do not become sexually active until four or five years old. The time of the year when mating takes place varies geographically, but a peak breeding season lasting three to four months can be observed at most places. Gestation lasts eight to nine months, following which a single calf (sometimes twins or even triplets) is born. As typical of several bovid species, nilgai calves stay hidden for the first few weeks of their lives. The lifespan of the nilgai is around ten years.Nilgai prefer areas with short bushes and scattered trees in scrub forests and grassy plains. They are common in agricultural lands, but hardly occur in dense forest. Major populations occur in the Terai lowlands in the foothills of the Himalayas (northern India), but the antelope is sparsely found in Nepal and Pakistan. It was first thought to be extinct in Bangladesh but it was found there on 22 January 2019. Nilgai were first introduced to Texas in the 1920s and the 1930s. As of 2008, the feral population in Texas is nearly 37,000. The nilgai is categorised as Least Concern by the IUCN. The nilgai has been associated with Indian culture since the Vedic period (1500–500 BC). Hindus revere the nilgai as sacred and associate it with the cow, the mother animal in Hinduism, through its name and loosely similar physical features. They were hunted in the Mughal era (16th to 19th centuries) and are depicted in numerous miniatures. Nilgai have been considered a pest in several north Indian states, as they ravage crop fields and cause considerable damage. In Bihar, authorities have classified the nilgai as vermin.
Animals of the same family as a Nilgai
Not really brothers and sisters, but from the same biological family (Bovidae):
- Mountain goat becoming 19.17 years old
- Black wildebeest becoming 20 years old
- Red gazelle growing to a mass of 40 kgs (88.18 lbs)
- Nubian ibex becoming 17 years old
- Chamois becoming 22 years old
- Naemorhedus sumatraensis becoming 21 years old
- Iberian ibex becoming 16 years old
- Blue wildebeest becoming 21.5 years old
- Dibatag becoming 3 years old
- Dorcas gazelle becoming 17.42 years old
Animals that reach the same age as Nilgai
With an average age of 21.67 years, Nilgai are in good companionship of the following animals:
- Eastern grey kangaroo usually reaching 24 years
- Jaguar usually reaching 23 years
- Père David’s deer usually reaching 23.25 years
- Venezuelan red howler usually reaching 25 years
- Antarctic fur seal usually reaching 23 years
- Fossa (animal) usually reaching 20 years
- Ocelot usually reaching 20.25 years
- Indian muntjac usually reaching 17.58 years
- Red river hog usually reaching 20 years
- Wild boar usually reaching 21 years
Animals with the same number of babies Nilgai
The same number of babies at once (1) are born by:
- Rüppell’s pipistrelle
- Goldman’s woodrat
- Prevost’s squirrel
- Pennant’s colobus
- Pond bat
- Tapeti
- Indri
- Peters’s flat-headed bat
- Franquet’s epauletted fruit bat
- Gray whale
Weighting as much as Nilgai
A fully grown Nilgai reaches around 181.63 kg (400.42 lbs). So do these animals:
- Philippine warty pig weighting 189.4 kilos (417.56 lbs) on average
- Giant forest hog weighting 196.57 kilos (433.36 lbs) on average
- Greater kudu weighting 205.53 kilos (453.12 lbs) on average
- Hartebeest weighting 162.47 kilos (358.18 lbs) on average
- White-beaked dolphin weighting 186.82 kilos (411.87 lbs) on average
- Dwarf sperm whale weighting 183.07 kilos (403.6 lbs) on average
- Black wildebeest weighting 156.55 kilos (345.13 lbs) on average
- Fraser’s dolphin weighting 164 kilos (361.56 lbs) on average
- East African oryx weighting 200.58 kilos (442.2 lbs) on average
- Ross seal weighting 208.63 kilos (459.95 lbs) on average
Animals as big as a Nilgai
Those animals grow as big as a Nilgai:
- Hirola with 1.6 meter (5′ 3″)
- South American sea lion with 2.11 meter (7′ 0″)
- Onager with 2.25 meter (7′ 5″)
- Subantarctic fur seal with 1.63 meter (5′ 4″)
- Gemsbok with 1.62 meter (5′ 4″)
- Tamaraw with 2.2 meter (7′ 3″)
- Reindeer with 2.23 meter (7′ 4″)
- Baird’s tapir with 2.2 meter (7′ 3″)
- Dwarf sperm whale with 2.16 meter (7′ 2″)
- Lion with 1.84 meter (6′ 1″)