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Bos Sauveli
The kouprey (''Bos sauveli''), also known as the forest ox and grey ox, is a possibly extinct species of forest-dwelling wild bovine native to Southeast Asia. It was first scientifically described in 1937. The name ''kouprey'' is derived from the Khmer language and means "forest ox". The kouprey was defined as the national mammal of Cambodia in 2005. The kouprey is listed as Critically Endangered and possibly extinct on the IUCN Red List. The last confirmed sighting of a wild individual took place in 1969. Taxonomy and phylogeny The kouprey was described by Achille Urbain in 1937 based on an adult individual that was caught in northern Cambodia and was kept at the Paris Zoological Park. In 2006, a comparison of mitochondrial DNA sequences indicated that the kouprey may be a hybrid between zebu and banteng. However, the authors of the study rescinded their conclusion. In 2021, it was established that the kouprey represents a distinct species unrelated to zebu, forming a polytom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kouprey 2
The kouprey (''Bos sauveli''), also known as the forest ox and grey ox, is a possibly extinct species of forest-dwelling wild Bovinae, bovine native to Southeast Asia. It was first scientifically described in 1937. The name ''kouprey'' is derived from the Khmer language and means "forest ox". The kouprey was defined as the national mammal of Cambodia in 2005. The kouprey is listed as Critically Endangered and possibly extinct on the IUCN Red List. The last confirmed sighting of a wild individual took place in 1969. Taxonomy and phylogeny The kouprey was Species description, described by Achille Urbain in 1937 based on an adult individual that was caught in northern Cambodia and was kept at the Paris Zoological Park. In 2006, a comparison of mitochondrial DNA sequences indicated that the kouprey may be a hybrid between zebu and banteng. However, the authors of the study rescinded their conclusion. In 2021, it was established that the kouprey represents a distinct species unrelat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold Glacial period, glacial periods and warmer Interglacial, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incomplete Lineage Sorting
Incomplete lineage sorting (ILS) (also referred to as hemiplasy, deep coalescence, retention of ancestral polymorphism, or trans-species polymorphism) is a phenomenon in evolutionary biology and population genetics that results in discordance between species and gene trees. By contrast, complete lineage sorting results in concordant species and gene trees. ILS occurs in the context of a gene in an ancestral species which exists in multiple alleles. If a speciation event occurs in this situation, either complete lineage sorting will occur, and both daughter species will inherit all alleles of the gene in question, or incomplete lineage sorting will occur, when one or both daughter species inherits a subset of alleles present in the parental species. For example, if two alleles of a gene are present and a speciation event occurs, one of the two daughter species might inherit both alleles, but the second daughter species only inherits one of the two alleles. In this case, incomplete l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambodia
Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. It is bordered by Thailand to the northwest, Laos to the north, and Vietnam to the east, and has a coastline along the Gulf of Thailand in the southwest. It spans an area of , dominated by a low-lying plain and the confluence of the Mekong river and Tonlé Sap, Southeast Asia's largest lake. It is dominated by a tropical climate and is rich in biodiversity. Cambodia has a population of about 17 million people, the majority of which are ethnically Khmer people, Khmer. Its capital and most populous city is Phnom Penh, followed by Siem Reap and Battambang. In 802 AD, Jayavarman II declared himself king, uniting the warring Khmer princes of Chenla Kingdom, Chenla under the name "Kambuja".Chandler, David P. (1992) ''History of Cambodia''. Boulder, CO: Westview Press, . This marked the beginning of the Khmer Empire. The Indianised kingdom facilitated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnam
Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and dependencies by population, fifteenth-most populous country. One of two communist states in Southeast Asia, Vietnam shares land borders with China to the north, and Laos and Cambodia to the west. It shares Maritime boundary, maritime borders with Thailand through the Gulf of Thailand, and the Philippines, Indonesia, and Malaysia through the South China Sea. Its capital is Hanoi and its largest city is Ho Chi Minh City. Vietnam was inhabited by the Paleolithic age, with states established in the first millennium BC on the Red River Delta in modern-day northern Vietnam. Before the Han dynasty's invasion, Vietnam was marked by a vibrant mix of religion, culture, and social norms. The Han dynasty annexed Northern and Central Vietnam, which were subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laos
Laos, officially the Lao People's Democratic Republic (LPDR), is the only landlocked country in Southeast Asia. It is bordered by Myanmar and China to the northwest, Vietnam to the east, Cambodia to the southeast, and Thailand to the west and southwest. The country has a population of approximately eight million. Its Capital city, capital and most populous city is Vientiane. The country is characterized by mountainous terrain, Buddhist temples, including the UNESCO's World Heritage Site of Luang Prabang, and French colonial architecture. The country traces its historic and cultural identity to Lan Xang, a kingdom which existed from the 13th to 18th centuries. Through its location, the kingdom was a hub for overland trade. In 1707, Lan Xang split into three kingdoms: Kingdom of Luang Phrabang, Luang Prabang, Kingdom of Vientiane, Vientiane, and Kingdom of Champasak, Champasak. In 1893, these kingdoms were unified under French protection as part of French Indochina. Laos was und ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thailand
Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spans . Thailand Template:Borders of Thailand, is bordered to the northwest by Myanmar, to the northeast and east by Laos, to the southeast by Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the southwest by the Andaman Sea; it also shares maritime borders with Vietnam to the southeast and Indonesia and India to the southwest. Bangkok is the state capital and List of municipalities in Thailand#Largest cities by urban population, largest city. Tai peoples, Thai peoples migrated from southwestern China to mainland Southeast Asia from the 6th to 11th centuries. Greater India, Indianised kingdoms such as the Mon kingdoms, Mon, Khmer Empire, and Monarchies of Malaysia, Malay states ruled the region, competing with Thai states s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where sexes of the same species exhibit different Morphology (biology), morphological characteristics, including characteristics not directly involved in reproduction. The condition occurs in most dioecy, dioecious species, which consist of most animals and some plants. Differences may include secondary sex characteristics, size, weight, color, markings, or behavioral or cognitive traits. Male-male reproductive competition has evolved a diverse array of sexually dimorphic traits. Aggressive utility traits such as "battle" teeth and blunt heads reinforced as battering rams are used as weapons in aggressive interactions between rivals. Passive displays such as ornamental feathering or song-calling have also evolved mainly through sexual selection. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', when both biological sexes are phenotype, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bos Gaurus
The gaur (''Bos gaurus''; ) is a large bovine native to the Indian Subcontinent and Southeast Asia, and has been listed as Vulnerable on the IUCN Red List since 1986. The global population was estimated at a maximum of 21,000 mature individuals in 2016, with the majority of those existing in India. It is the largest species among the wild cattle and the Bovidae. The domesticated ''gayal'' or ''mithun'' originated partly from the wild gaur and is most common in the border regions of Northeast India (Assam, Manipur, Nagaland) and Bangladesh with Myanmar and Yunnan, China.Simoons, F. J. (1984). ''Gayal or mithan''. In: Mason, I. L. (ed.) ''Evolution of Domesticated Animals''. Longman, London. Pages 34–38. Etymology The Sanskrit word means 'white, yellowish, reddish'. The Sanskrit word means a kind of water buffalo. The Hindi word means 'fair-skinned, fair, white'. Taxonomy ''Bison gaurus'' was the scientific name proposed by Charles Hamilton Smith in 1827. Later auth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bos Javanicus
The banteng (''Bos javanicus''; ), also known as tembadau, is a species of wild bovine found in Southeast Asia. The head-and-body length is between . Wild banteng are typically larger and heavier than their domesticated counterparts, but are otherwise similar in appearance. The banteng shows extensive sexual dimorphism; adult bulls are generally dark brown to black, larger and more sturdily built than adult cows, which are thinner and usually pale brown or chestnut red. There is a big white patch on the rump. Horns are present on both sexes, and are typically long. Three subspecies are generally recognised. Banteng are active during the day as well as at night, though activity at night is more in areas frequented by humans. Herds comprise two to forty individuals, and generally a single bull. Being herbivorous, banteng feed on vegetation such as grasses, sedges, shoots, leaves, flowers, and fruits. Banteng can survive without water for long stretches during droughts, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bison Bonasus
The European bison (: bison) (''Bison bonasus'') or the European wood bison, also known as the wisent ( or ), the zubr (), or sometimes colloquially as the European buffalo, is a European species of bison. It is one of two extant species of bison, alongside the American bison. The European bison is the heaviest wild land animal in Europe, and individuals in the past may have been even larger than their modern-day descendants. During late antiquity and the Middle Ages, bison became extinct in much of Europe and Asia, surviving into the 20th century only in northern-central Europe and the northern Caucasus Mountains. During the early years of the 20th century, bison were hunted to extinction in the wild. By the late 2010s, the species numbered several thousand and had been returned to the wild by captive breeding programmes. It is no longer in immediate danger of extinction, but remains absent from most of its historical range. It is not to be confused with the aurochs (''Bos pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bison Bison
The American bison (''Bison bison''; : ''bison''), commonly known as the American buffalo, or simply buffalo (not to be confused with true buffalo), is a species of bison that is endemic (or native) to North America. It is one of two extant species of bison, along with the European bison. Its historical range ''circa'' 9000 BC is referred to as the great bison belt, a tract of rich grassland spanning from Alaska south to the Gulf of Mexico, and east to the Atlantic Seaboard (nearly to the Atlantic tidewater in some areas), as far north as New York, south to Georgia, and according to some sources, further south to northern Florida, with sightings in North Carolina near Buffalo Ford on the Catawba River as late as 1750. Two subspecies or ecotypes have been described: the plains bison (''B. b. bison''), smaller and with a more rounded hump; and the wood bison (''B. b. athabascae''), the larger of the two and having a taller, square hump. Furthermore, the plains bison has been su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
