Rousettus Amplexicaudatus
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Rousettus Amplexicaudatus
Geoffroy's rousette (''Rousettus amplexicaudatus'') is a species of megabat or Old World fruit bats. It is one of ten species in the genus ''Rousettus''. Distribution Geoffroy's rousette occurs throughout Southeast Asia and in the Malesia region of Oceania, in Myanmar, Thailand, Cambodia, Laos, Vietnam, Singapore, Indonesia, the island of Borneo, East Timor, the Philippines, the Solomon Islands, Bismarck Archipelago, and Papua New Guinea. Description Like other fruit bats, ''R. amplexicaudatus'' has sensitive hearing and sense of smell and good eyesight which helps it to manoeuvre well during flight, specifically at night. What makes it different from other fruit bats is its echolocating ability. It can be distinguished by its grey-brown to brown upperpart which is darker on top of the head and paler underpart which is usually grey-brown.Payne, J. & Francis, C.M. (1985). ''A Field Guide to the Mammals of Borneo''. Sabah Society: Malaysia. p. 171. It has long pale hairs on the chin ...
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Étienne Geoffroy Saint-Hilaire
Étienne Geoffroy Saint-Hilaire (15 April 177219 June 1844) was a French naturalist who established the principle of "unity of composition". He was a colleague of Jean-Baptiste Lamarck and expanded and defended Lamarck's evolutionary theories. Geoffroy's scientific views had a transcendental flavor (unlike Lamarck's materialistic views) and were similar to those of German morphologists like Lorenz Oken. He believed in the underlying unity of organismal design, and the possibility of the transmutation of species in time, amassing evidence for his claims through research in comparative anatomy, paleontology, and embryology. He is considered as a predecessor of the evo-devo evolutionary concept. Life and early career Geoffroy was born at Étampes (in present-day Essonne), and studied at the Collège de Navarre, in Paris, where he studied natural philosophy under M. J. Brisson. He then attended the lectures of Daubenton at the College de France and Fourcroy at the Jardin des Pl ...
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Solomon Islands
Solomon Islands is an island country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and north-west of Vanuatu. It has a land area of , and a population of approx. 700,000. Its capital, Honiara, is located on the largest island, Guadalcanal. The country takes its name from the wider area of the Solomon Islands (archipelago), which is a collection of Melanesian islands that also includes the Autonomous Region of Bougainville (currently a part of Papua New Guinea), but excludes the Santa Cruz Islands. The islands have been settled since at least some time between 30,000 and 28,800 BCE, with later waves of migrants, notably the Lapita people, mixing and producing the modern indigenous Solomon Islanders population. In 1568, the Spanish navigator Álvaro de Mendaña was the first European to visit them. Though not named by Mendaña, it is believed that the islands were called ''"the Solomons"'' by those who later receiv ...
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Bats Of Oceania
Bats are mammals of the Order (biology), order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, Bat flight, flying with their very long spread-out digits covered with a thin skin, membrane or patagium. The smallest bat, and arguably the smallest extant mammal, is Kitti's hog-nosed bat, which is in length, across the wings and in mass. The largest bats are the Flying fox#Physical characteristics, flying foxes, with the giant golden-crowned flying fox, ''Acerodon jubatus'', reaching a weight of and having a wingspan of . The second largest order of mammals after rodents, bats comprise about 20% of all classified mammal species worldwide, with over 1,400 species. These were traditionally divided into two suborders: the largely fruit-eating megabats, and the Animal echolocation, echolocating microbats. But more r ...
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Bats Of Southeast Asia
Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium. The smallest bat, and arguably the smallest extant mammal, is Kitti's hog-nosed bat, which is in length, across the wings and in mass. The largest bats are the flying foxes, with the giant golden-crowned flying fox, ''Acerodon jubatus'', reaching a weight of and having a wingspan of . The second largest order of mammals after rodents, bats comprise about 20% of all classified mammal species worldwide, with over 1,400 species. These were traditionally divided into two suborders: the largely fruit-eating megabats, and the echolocating microbats. But more recent evidence has supported dividing the order into Yinpterochiroptera and Yangochiropter ...
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Rousettus
''Rousettus'' is a genus of Old World fruit bats or megabats, referred to as rousette bats. The genus is a member of the family Pteropodidae. The genus consists of seven species that range over most of Africa to southeast Asia, and the islands of the south Pacific. They are among the few megabats capable of echolocation, and the only genus of megabats known to use vocal echolocation. Classification Genus ''Rousettus'' – rousette fruit bats *Geoffroy's rousette, ''R. amplexicaudatus'' *Egyptian fruit bat or Egyptian rousette, ''R. aegyptiacus'' *Leschenault's rousette, ''R. leschenaulti'' *Linduan rousette, ''R. linduensis'' *Comoro rousette, ''R. obliviosus'' * Bare-backed rousette, ''R. spinalatus'' *Madagascan rousette The Madagascan rousette (''Rousettus madagascariensis'') or Madagascar rousette, is a species of megabat in the family Pteropodidae endemic to Madagascar. Its natural habitat is subtropical or tropical dry forests. Description The Madagascan ..., ''R. m ...
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Monfort Bat Cave
Monfort Bat Sanctuary has been the house of a large colony of 2.3 million Rousette fruit bats since recorded history. They cover 75% of the ceilings and walls of their -long cave The sanctuary is located on Samal Island, about east of Davao City, Philippines. According to Guinness World Records, it is the largest single colony of this kind. Fruit bats Fruit bats are an extremely popular type of bat that can also be called megabats. The bats originate from tropical regions of the Old World. They don't hibernate and since they dislike the cold, tropical regions suit them best. Fruit bats diet includes fruit and nectar. During their Circadian flight, fruit bats gather 1.5 to 3 times their body weight in food. Certain types of fruit bats have short jaws and powerful teeth to pierce into fruit. Others have long tongues and snouts to reach pollen and nectar. They can search up to to find food. Some types of fruit bats can have a 5 feet wing span, the largest of all bats. Other fruit ...
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Niah Cave
Niah National Park, located within Miri Division, Sarawak, Malaysia, is the site of the Niah Caves limestone cave and archeological site. History Alfred Russel Wallace lived for 8 months at Simunjan District with a mining engineer, Robert Coulson, who had explored what is now northern Sarawak for mineral ores. Coulson later wrote to Wallace about finding bones in a number of caves in Sarawak. On further enquiry, Wallace learned that one cave in question "was situated in the district between Sarawak and Bruni (Brunei), on a mountain some distance inland." In March 1864, Wallace favoured Coulson to explore the caves. However, later in May 1864, G. J. Ricketts, a British Consul to Sarawak was appointed to undertake the work. Ricketts did not remain in the post for long and subsequently Alfred Hart Everett was chosen to undertake the work. Everett surveyed 32 caves in three areas, including Niah/Subis (near Miri) and "Upper Sarawak Proper" (to the south of Kuching). In the 1950s ...
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Sarawak
Sarawak (; ) is a States and federal territories of Malaysia, state of Malaysia. The largest among the 13 states, with an area almost equal to that of Peninsular Malaysia, Sarawak is located in northwest Borneo Island, and is bordered by the Malaysian state of Sabah to the northeast, Kalimantan (the Indonesian portion of Borneo) to the south, and Brunei in the north. The capital city, Kuching, is the largest city in Sarawak, the economic centre of the state, and the seat of the Sarawak state government. Other cities and towns in Sarawak include Miri, Malaysia, Miri, Sibu, and Bintulu. As of 2021, the population of Sarawak was estimated to be around 2.45 million. Sarawak has an equatorial climate with tropical rainforests and abundant animal and plant species. It has several prominent cave systems at Gunung Mulu National Park. Rajang River is the longest river in Malaysia; Bakun Dam, one of the largest dams in Southeast Asia, is located on one of its tributaries, the Balui River ...
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Crocker Range
Crocker Range ( ms, Banjaran Crocker) is a mountain range in West Coast Division of Sabah, Malaysia that separates the west and east coast of Sabah. At an average height of , it is the highest mountain range in the state with the range is named after the British administrator in North Borneo, William Maunder Crocker. Geology The range is made up of uplifted and folded sedimentary rocks consisted of weathered soft sandstones and shales. The highest point is Mount Kinabalu at . Most of the park boundary lies above with its lowlands used for cash crops and paddy field. On the east of the range located the Tambunan Valley at which are mainly terraced paddy fields and groves of bamboos border the north-eastern part of the protected park. The park area is important as a water catchment to supply water into various river in the west coast and interior districts of Sabah including Papar River, Kimanis River, Bongawan River, Membakut River, Padas River and Melalap River that flow wes ...
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Sabah Museum
The Sabah Museum (Malay: ''Muzium Sabah'') is the state museum of Sabah, Malaysia. It is sited on of land at Bukit Istana Lama in Kota Kinabalu, the state capital. History The original Sabah Museum location was established on 15 July 1965 in a shophouse in Gaya Street, Kota Kinabalu, largely due to the efforts of the Sabah Society. George Cathcart Woolley collection of photographs, diaries and other artefacts, bequeathed to the State Government of Sabah, formed the nucleus of the museum. The first curator of the museum was E. J. Berwick. The museum administration then came under the State Ministry of Community Services and within the same year in 1981 under the initiative of former Sabah Chief Minister Harris Salleh, a total of RM31.2 million was gathered for the construction of a new museum building with the construction started on 1 June. The following year, the museum administration came under the State Ministry of Culture, Youth and Sports where it finally moved into its ...
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Premolar
The premolars, also called premolar teeth, or bicuspids, are transitional teeth located between the canine and molar teeth. In humans, there are two premolars per quadrant in the permanent set of teeth, making eight premolars total in the mouth. They have at least two cusps. Premolars can be considered transitional teeth during chewing, or mastication. They have properties of both the canines, that lie anterior and molars that lie posterior, and so food can be transferred from the canines to the premolars and finally to the molars for grinding, instead of directly from the canines to the molars. Human anatomy The premolars in humans are the maxillary first premolar, maxillary second premolar, mandibular first premolar, and the mandibular second premolar. Premolar teeth by definition are permanent teeth distal to the canines, preceded by deciduous molars. Morphology There is always one large buccal cusp, especially so in the mandibular first premolar. The lower second ...
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