A horn is a permanent pointed projection on the head of various animals that consists of a covering of keratin and other proteins surrounding a core of live bone . Horns are distinct from antlers , which are not permanent. In mammals, true horns are found mainly among the ruminant artiodactyls , in the families Antilocapridae ( pronghorn ) and Bovidae ( cattle , goats , antelope etc.). Cattle horns arise from subcutaneous connective tissue (under the scalp) and later fuse to the underlying frontal bone.
19-1107: For the ibex, see Walia ibex . Walia is a surname of Indian origin. People with this surname include: Authors [ edit ] Harsha Walia , South Asian activist and author of Indian origin Politicians [ edit ] Ashok Kumar Walia (1948–2021), politician Kiran Walia (born 1944), politician (a former minister) Entertainment [ edit ] Bunty Walia , film producer Niki Aneja Walia (born 1972), television actress Sonu Walia (born 1964), Bollywood actress Roshni Walia (born 2001), Bollywood and television actress Gunjan Walia (born 1986), television actress Khushwant Walia (born 1987), television actor Jasmin Walia (born 1991), British-Indian singer Sports [ edit ] Ravi Walia (born 1973), Canadian figure skater Other countries [ edit ] Harmeet D. Walia , American endodontist [REDACTED] Surname list This page lists people with
38-427: A constant increase in the past decades. Not only from livestock but also human agriculture and needs. This increase has affected the rate of interbreeding, survival, and expansion of the population. This impact has seen the endangerment level continue to rise and fewer and fewer resources are available for the native species to sustain their presence (Alemayehu et al, 2011). The most important stronghold for their survival
57-501: Is different from Wikidata All set index articles Walia ibex The Walia ibex ( Capra walie , Amharic : ዋልያ wālyā Oromo : Waliyaa or Gadamsa baddaa ) is a vulnerable species of ibex . It is sometimes considered an endemic subspecies of the Alpine ibex . If the population were to increase, the surrounding mountain habitat would be sufficient to sustain only 2,000 ibex. The adult Walia ibex's only known wild predator
76-506: Is now the 13,600 ha (34,000 acres) sized Semien National Park which was established in 1969. The Walia ibex is considered to be vulnerable by the IUCN and needs further conservation measures to survive. Since no captive population is kept anywhere in the world, the IUCN recommends capturing a few individuals to form the nucleus of a captive breeding group. Horn (anatomy) One pair of horns
95-452: Is the hyena . However, young ibex are often hunted by a variety of fox and cat species. The ibex are members of the goat family, and the Walia ibex is the southernmost of today's ibexes. In the late 1990s, the Walia ibex went from endangered to critically endangered due to the declining population. The Walia ibex is also known as the Abyssinian ibex. Given the small distribution range of
114-532: Is usual; however, two or more pairs occur in a few wild species and in some domesticated breeds of sheep. Polycerate (multi-horned) sheep breeds include the Hebridean , Icelandic , Jacob , Manx Loaghtan , and the Navajo-Churro . Horns usually have a curved or spiral shape, often with ridges or fluting. In many species, only males have horns. Horns start to grow soon after birth and continue to grow throughout
133-522: The Simien Mountains , the numbers dropped during the 20th century. Only 200–250 animals were surviving in 1994–1996, but recently the population has somewhat increased to about 500 individuals in 2004. Habitat loss and hunting are major threats to the species. The encroaching settlement, livestock grazing, and cultivation are also big problems. Road construction is also fragmenting their habitat. The pressure and competition for natural resources have seen
152-600: The surname Walia . If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name (s) to the link. Retrieved from " https://en.wikipedia.org/w/index.php?title=Walia&oldid=1252573346 " Categories : Surnames Surnames of Indian origin Punjabi-language surnames Surnames of Hindu origin Hidden categories: Articles with short description Short description
171-409: The Walia ibex in its restricted mountain ecosystem, the presence of a large number of domestic goats may pose a serious threat that can directly affect the survival of the population. These animals have a chocolate-brown to chestnut-brown coat coloration, greyish-brown muzzle, and a lighter grey in the eyes and legs. The belly and insides of the legs are white, and black and white patterns stretch upon
190-469: The Walia ibex is smaller and slimmer than the Alpine ibex. Walia ibex live in herds ranging from five to 20 animals. However the older, more mature males are often more solitary, though they will remain within a short distance of the main herd most times and during the mating season and rejoin with the herd for breeding purposes. Breeding usually takes place during late fall and early winter. The following spring,
209-530: The elderly. Some people, notably The Enigma , have horn implants; that is, they have implanted silicone beneath the skin as a form of body modification . Animals have a variety of uses for horns and antlers, including defending themselves from predators and fighting members of their own species ( horn fighting ) for territory, dominance or mating priority. Horns are usually present only in males but in some species, females too may possess horns. It has been theorized by researchers that taller species living in
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#1732859239461228-542: The female will give birth to one or two offspring. A herd of Walia ibex was noted to travel one half of a kilometer up to two kilometers per day. The Walia ibex lives in very steep, rocky cliff areas between 2,500 and 4,500 m (8,200 and 14,800 ft) high. Their habitats are mountain forests, subalpine grasslands , and scrub. They are grazers. Their diets include bushes, herbs , lichens , shrubs, grasses, and creepers. They often stand on their hind legs to get to young shoots of giant heath. Walia ibex are most active in
247-613: The head of animals in various other families: Many mammal species in various families have tusks , which often serve the same functions as horns, but are in fact oversized teeth. These include the Moschidae (Musk deer, which are ruminants), Suidae ( Wild Boars ), Proboscidea ( Elephants ), Monodontidae ( Narwhals ) and Odobenidae ( Walruses ). Polled animals or pollards are those of normally-horned (mainly domesticated ) species whose horns have been removed, or which have not grown. In some cases such animals have small horny growths in
266-567: The legs of these animals. The males weigh 80–125 kg (180–280 lb) and have very large horns which curve backwards, reaching lengths up to 110 cm (43 in). These horns are used for dominance disputes between males. The males also have distinguished black beards. The length of the Walia ibex beard varies with age. The older males have longer, thicker beards than the young ones. Females also have horns, but they are shorter and thinner. Females are smaller and lighter in color. The horns on both males and females are rigid. The overall size of
285-422: The life of the animal (except in pronghorns, which shed the outer layer annually, but retain the bony core). Partial or deformed horns in livestock are called scurs . Similar growths on other parts of the body are not usually called horns, but spurs , claws , or hooves , depending on the part of the body on which they occur. The term "horn" is also popularly applied to other hard and pointed features attached to
304-425: The male blue wildebeest reams the bark and branches of trees to impress the female and lure her into his territory . Some animals such as goats with true horns use them for cooling with the blood vessels in the bony core allowing them to function as a radiator . After the death of a horned animal, the keratin may be consumed by the larvae of the horn moth . In some instances, wildlife parks may decide to remove
323-433: The morning and evening and will rest in the sun on rock ledges. Males live in bachelor groups and females live in groups with their offspring. Mating season is at the summit from March to May. Males compete for females by ramming their horns with amazing force. Gestation periods last 150–165 days. They reach sexual maturity at one year of age. This species is found only in the northern mountains of Ethiopia. Once widespread in
342-438: The open are more visible from longer distances and more likely to benefit from horns to defend themselves against predators. Female bovids that are not hidden from predators due to their large size or open savannahlike habitat are more likely to bear horns than small or camouflaged species. In addition, horns may be used to root in the soil or strip bark from trees. In animal courtship , many use horns in displays. For example,
361-683: The skin where their horns would be – these are known as scurs . Cutaneous horns are the only examples of horns growing on people. Cases of people growing horns have been historically described, sometimes with mythical status. Researchers have not however discovered photographic evidence of the phenomenon. There are human cadaveric specimens that show outgrowings, but these are instead classified as osteomas or other excrescences . The phenomenon of humans with horns has been observed in countries lacking advanced medicine. There are living people, several in China, with cases of cutaneous horns, most common in
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