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Somali Elephant Shrew
The Somali elephant shrew or Somali sengi (''Galegeeska revoilii'') is a species of elephant shrew in the family Macroscelididae. Habitat Its natural habitat is arid and semiarid desert with rocky substrates and sparse shrubs. In some parts of Somalia, the Somali sengi and rufous sengi (''G. rufescens'') may be locally sympatric. It is found in the northern Horn of Africa; it was formerly thought to be exclusively endemic to Somalia, but a 2020 sighting also indicates they are found in Djibouti and potentially Ethiopia. Classification It was formerly classified in the genus ''Elephantulus'', but a 2020 study found it to be the sister taxon In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and ... of the clade containing the genera '' Petrodromus'' and '' Petrosaltator''; and the genu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elephant Shrew
Elephant shrews, also called jumping shrews or sengis, are small insectivorous mammals native to Africa, belonging to the family Macroscelididae, in the order Macroscelidea. Their traditional common English name "elephant shrew" comes from a perceived resemblance between their long noses and the trunk of an elephant, and their superficial similarity with shrews (family Soricidae) in the order Eulipotyphla. However, phylogenetic analysis has revealed that elephant shrews are not properly classified with true shrews, but are in fact more closely related to elephants than to shrews. In 1997, the biologist Jonathan Kingdon proposed that they instead be called "sengis" (singular ''sengi''), a term derived from the Bantu languages of Africa, and in 1998, they were classified into the new clade Afrotheria. They are widely distributed across the southern part of Africa, and although common nowhere, can be found in almost any type of habitat, from the Namib Desert to boulder-strewn ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four-toed Elephant Shrew
The four-toed elephant shrew or four-toed sengi (''Petrodromus tetradactylus'') is the only living species in the genus ''Petrodromus'', which together with five other extant genera ''Rhynchocyon'', '' Macroscelides'', '' Petrosaltator'', '' Galegeeska'' and ''Elephantulus'' constitutes the order Macroscelidea. This species is only found in particular regions in Africa and is smaller than its relatives. A comprehensive record of this species is lacking. As its name suggests, the species has four toes on its hind feet, and like other elephant shrews, it has been named for its elephant-like, mobile proboscis. Geographic location and habitat The four-toed elephant shrew is located in Central and Southern East Africa, notably in Angola, Democratic Republic of the Congo, Kenya, Malawi, Mozambique, South Africa, Tanzania, Zambia, Zimbabwe, and possibly Namibia. Its natural habitats are subtropical or tropical dry forests, montane forests, and moist savannas. Throughout these countri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Described In 1881
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla ( cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Somalia
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Of Somalia
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla ( cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elephant Shrews
Elephant shrews, also called jumping shrews or sengis, are small insectivorous mammals native to Africa, belonging to the family Macroscelididae, in the order Macroscelidea. Their traditional common English name "elephant shrew" comes from a perceived resemblance between their long noses and the trunk of an elephant, and their superficial similarity with shrews (family Soricidae) in the order Eulipotyphla. However, phylogenetic analysis has revealed that elephant shrews are not properly classified with true shrews, but are in fact more closely related to elephants than to shrews. In 1997, the biologist Jonathan Kingdon proposed that they instead be called "sengis" (singular ''sengi''), a term derived from the Bantu languages of Africa, and in 1998, they were classified into the new clade Afrotheria. They are widely distributed across the southern part of Africa, and although common nowhere, can be found in almost any type of habitat, from the Namib Desert to boulder-strewn ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Wildlife Conservation
Global means of or referring to a globe and may also refer to: Entertainment * ''Global'' (Paul van Dyk album), 2003 * ''Global'' (Bunji Garlin album), 2007 * ''Global'' (Humanoid album), 1989 * ''Global'' (Todd Rundgren album), 2015 * Bruno J. Global, a character in the anime series ''The Super Dimension Fortress Macross'' Companies and brands Television * Global Television Network, in Canada ** Global BC, on-air brand of CHAN-TV, a television station in Vancouver, British Columbia, Canada ** Global Okanagan, on-air brand of CHBC-TV, a television station in Kelowna, British Columbia, Canada ** Global Toronto, a television station in Toronto ** Global Edmonton ** Global Calgary ** Global Montreal ** Global Maritimes ** Canwest Global, former parent company of Global Television Network * Global TV (Venezuela), a regional channel in Venezuela Other industries * Global (cutlery), a Japanese brand * Global Aviation Holdings, the parent company of World Airways, Inc., and North A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galegeeska
''Galegeeska'' is a genus of elephant shrew (or sengi) in the family Macroscelididae. Members in this genus were formerly classified in the genus ''Elephantulus'', but later studies found the Somali and rufous sengis to be the sister taxa of the clade containing the genera '' Petrodromus'' and '' Petrosaltator''; due to this, the genus ''Galegeeska'' was coined for the Somali and later the rufous sengi''.'' The split with the ''Petrodromus''-''Petrosaltator'' clade is estimated to have occurred about 20.6 million years ago. ''Galegeeska'' translates to "weasel of the horn". In the Somali language, means corner or horn, as in the Horn of Africa. in Ancient Greek means weasel, and has been used in other small mammal taxa. 'Gale' also honours one of the authors, Galen B. Rathbun (1944-2019) who searched for the Somali sengi and devoted several decades of research into sengi biology. It contains two species; * Somali elephant shrew The Somali elephant shrew or Somali seng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North African Elephant Shrew
The North African elephant shrew (''Petrosaltator rozeti'') or North African sengi is a species of elephant shrew in the family Macroscelididae. It is found in Algeria, Libya, Morocco, and Tunisia, and (since the extinction of the North African elephant) is the only extant afrotherian within its range. The species was formerly classified in the genus ''Elephantulus'', but molecular evidence indicates that it is more closely related to '' Petrodromus'' than to other members of ''Elephantulus''. It was moved to a new genus, ''Petrosaltator'', in 2016. The split with ''Petrodromus'' likely occurred during the Miocene period. Description The North African elephant-shrew is a little rodent-like in appearance, having a small body, large ears, and a long tail. It weighs around , which is very light compared to other sengis). The total length is from , of which the tail is . The fur on the upper body varies from yellowish brown to pale sandy-pink, and the fur on the underside is white. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same taxonomic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deserts And Xeric Shrublands
Deserts and xeric shrublands are a biome defined by the World Wide Fund for Nature. Deserts and xeric (ancient Greek xērós, “dry") shrublands form the largest terrestrial biome, covering 19% of Earth's land surface area. Ecoregions in this habitat type vary greatly in the amount of annual rainfall they receive, usually less than annually except in the margins. Generally evaporation exceeds rainfall in these ecoregions. Temperature variability is also diverse in these lands. Many deserts, such as the Sahara, are hot year-round, but others, such as East Asia's Gobi, become quite cold in winter. Temperature extremes are a characteristic of most deserts. High daytime temperatures give way to cold nights because there is no insulation provided by humidity and cloud cover. The diversity of climatic conditions, though quite harsh, supports a rich array of habitats. Many of these habitats are ephemeral in nature, reflecting the paucity and seasonality of available water. Woody-ste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elephantulus
''Elephantulus'' is a genus of elephant shrew in the family Macroscelididae. It contains the following species: * Short-snouted elephant shrew (''E. brachyrhynchus'') * Cape elephant shrew (''E. edwardii'') * Dusky-footed elephant shrew (''E. fuscipes'') * Dusky elephant shrew The dusky elephant shrew or dusky sengi (''Elephantulus fuscus'') is a species of elephant shrew in the family Macroscelididae. It is found in Malawi, Mozambique, and Zambia. Its natural habitat is dry savanna A savanna or savannah is a mix ... (''E. fuscus'') * Bushveld elephant shrew (''E. intufi'') * Eastern rock elephant shrew (''E. myurus'') * Karoo rock elephant shrew (''E. pilicaudus'') * Western rock elephant shrew (''E. rupestris'') References * Smit, H.A., Robinson, T.J., Watson, J. & Jansen van Vuunen, B. (2008). A New Species of Elephant-shrew (Afrotheria: Macroscelidea: ''Elephantulus'') from South Africa. Journal of Mammalogy 89 (5): 1257–1268. Elephant shrews Mammal ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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