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Northern Yellow-faced Turtle
The northern yellow-faced turtle (''Emydura tanybaraga'') is a species of medium-sized aquatic turtle in the family Chelidae. It inhabits slow-flowing rivers, streams, billabongs and paperbark swamps across much of northern Australia. Description ''E. tanybaraga'' has a great morphological variation between different locations; adults are very similar in appearance to '' E. subglobosa''. A light yellow band runs from the eye to just above the tympanum. Another band extends from the angle of the mouth along the neck. The eye has dark markings through the iris at the level of the pupil. The carapace A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tor ... of juveniles is pear-shaped and becomes oval in adults. It is light brown to dark brown in color, with a yellow or white rim. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Cann (zoologist) (1946–2011), English guitarist
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John Cann may refer to: * John Cann (politician) (1860–1940), New South Wales politician * John Cann (athlete) (born 1938), Australian athlete * John Du Cann John William Cann (2 June 1946 – 21 September 2011), later known by his stage name John Du Cann, was an English guitarist primarily known through his work in the 1970s band Atomic Rooster. Life and career His early bands included the Wilt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelidae
Chelidae is one of three living families of the turtle suborder Pleurodira, and are commonly called Austro-South American side-neck turtles. The family is distributed in Australia, New Guinea, parts of Indonesia, and throughout most of South America. It is a large family of turtles with a significant fossil history dating back to the Cretaceous. The family is entirely Gondwanan in origin, with no members found outside Gondwana, either in the present day or as a fossil.Georges, A. & Thomson, S. (2006). "Evolution and Zoogeography of Australian freshwater turtles". In: Merrick, J. R.; Archer, M.; Hickey, G. & Lee, M. (eds.) ''Evolution and Zoogeography of Australasian Vertebrates''. Sydney: Australia. Description Like all pleurodirous turtles, the chelids withdraw their necks sideways into their shells, differing from cryptodires that fold their necks in the vertical plane. They are all highly aquatic species with webbed feet and the capacity to stay submerged for long periods of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Billabong
Billabong ( ) is an Australian term for an oxbow lake, an isolated pond left behind after a river changes course. Billabongs are usually formed when the path of a creek or river changes, leaving the former branch with a dead end. As a result of the arid Australian climate in which these "dead rivers" are often found, billabongs fill with water seasonally but can be dry for a greater part of the year. Etymology The etymology of the word ''billabong'' is disputed. The word is most likely derived from the Wiradjuri term ''bilabaŋ'', which means "a watercourse that runs only after rain". It is derived from ''bila'', meaning "river", It may have been combined with ''bong'' or ''bung'', meaning "dead". One source, however, claims that the term is of Scottish Gaelic origin. Billabongs were significant because they held water longer than parts of rivers; it was important for people to identify and name these areas. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-bellied Short-necked Turtle
The red-bellied short-necked turtle (''Emydura subglobosa''), also known commonly as the pink-bellied side-necked turtle and the Jardine River turtle, is a species of turtle in the family Chelidae. The species is native to Australia and Papua New Guinea. There are two recognized subspecies. Description ''E. subglobosa'', a hard-shelled chelid, is more colorful than most of its relatives. Geographic range ''E. subglobosa'' is found in northern Queensland, Australia, and in southern Papua New Guinea.IUCN Red List (2000). Habitat ''E. subglobosa'' lives in freshwater rivers and swamps, and also in lagoons and lakes. In captivity The red-bellied short-necked turtle is popular as a pet. A 75-gallon or larger aquarium is used to house this species. In captivity, it feeds on fish, commercial turtle pellets, and plant matter. Due to Australia's ban of exporting wild-caught animals, all wild-caught individuals are from New Guinea. In Florida in the United States, ''E. globosa'' h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympanum (anatomy)
The tympanum is an external hearing structure in animals such as mammals, birds, some reptiles, some amphibians and some insects. Using sound, vertebrates and many insects are capable of sensing their prey, identifying and locating their predators, warning other individuals, and locating potential mates and rivals by hearing the intentional or unintentional sounds they make. In general, any animal that reacts to sounds or communicates by means of sound, needs to have an auditory mechanism. This typically consists of a membrane capable of vibration known as the tympanum, an air-filled chamber and sensory organs to detect the auditory stimuli. Anurans In frogs and toads, the tympanum is a large external oval shape membrane made up of nonglandular skin. It is located just behind the eye. It does not process sound waves; it simply transmits them to the inner parts of the amphibian's ear, which is protected from the entry of water and other foreign objects. A frog's ear drum works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbel (anatomy)
In fish anatomy and turtle anatomy, a barbel is a slender, whiskerlike sensory organ near the mouth. Fish that have barbels include the catfish, the carp, the goatfish, the hagfish, the sturgeon, the zebrafish, the black dragonfish and some species of shark such as the sawshark. Barbels house the taste buds of such fish and are used to search for food in murky water. The word "barbel" comes from the Middle Latin ''barbula'', for "little beard." Barbels are sometimes erroneously referred to as '' barbs'', which are found in bird feathers for flight. Barbels may be located in a variety of locations on the head of a fish. "Maxillary barbels" refers to barbels on either side of the mouth. Barbels may also be nasal, extending from the nostrils. Also, barbels are often mandibular or mental, being located on the chin. In fish, barbels can take the form of small, fleshy protrusions or long, cylindrical shaped extensions of the head of a fish. The cylindrical barbel shapes are bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emydura
''Emydura'', the Australian short-necked turtles, are a genus of turtles in the family Chelidae. It was paraphyletic with '' Elseya''. Consequently, it was split into two genera ''Myuchelys'' and ''Elseya'' by Thomson & Georges, 2009.Thomson, S. & Georges, A. (2009) ''Myuchelys'' gen. nov. —a new genus for ''Elseya latisternum'' and related forms of Australian freshwater turtle ( Testudines: Pleurodira: Chelidae) Zootaxa 2053: 32–42. They can grow quite large, 30 cm or more is not unusual and have a life span of around 20–30 years. They generally do not hibernate as their warmer climate lets them remain active all year round; they also spend more time in the water than other varieties. They are considered omnivore but rely on a constant supply of meat to remain healthy, feeding on basically anything that will fit into their mouth. They are characterised by a white strip starting at their nose and leading down their neck, as well as a more rigged shell. In Aust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Described In 1997
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates ( lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The earliest known proto-reptiles originated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
