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Grévy's Zebra
Grévy's zebra (''Equus grevyi)'', also known commonly as the imperial zebra, is the largest living species of wild equid and the most threatened of the three species of zebras, the other two being the plains zebra and the mountain zebra. Named after French president Jules Grévy, it is found in parts of Kenya and Ethiopia. Superficially, Grévy's zebra's physical features can help to identify it from the other zebra species; its overall appearance is slightly closer to that of a mule, compared to the more "equine" (horse) appearance of the plains and mountain zebras. Compared to other zebra species, Grévy's zebra is the tallest; it has mule-like, larger ears, and has the tightest stripes of all zebras. It has a distinctively erect mane, and a more slender snout. Grévy's zebra lives in semi-arid savanna, where it feeds on grasses, legumes, and browse, such as acacia; it can survive up to five days without water. It differs from the other zebra species in that it does not li ... [...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] |
IUCN
The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status of the natural world and the measures needed to safeguard it. It is involved in data gathering and Data analysis, analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through buildin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equus Grevyi In Samburu
Equus may refer to: * ''Equus'' (genus), a genus of animals including horses, donkeys and zebras * ''Equus'' (play), a play by Peter Shaffer * ''Equus'' (film), a film adaptation of the Peter Shaffer play * Equus (comics), a comic book character; an opponent of Superman * ''Equus'' (magazine), American monthly lifestyle magazine for horse enthusiasts Music * "Equus", a composition for concert band by Eric Whitacre * "Equus", a song by Blonde Redhead from '' Misery Is a Butterfly'' * "Equus", a song by the Cherry Poppin' Daddies off their 1994 album ''Rapid City Muscle Car ''Rapid City Muscle Car'' is the second studio album by American band the Cherry Poppin' Daddies, released in 1994 on Space Age Bachelor Pad Records. Overview ''Rapid City Muscle Car'' was structured around the Daddies' desire to create a sty ...'' Transportation * Equus Automotive, an American muscle car producer * Hyundai Equus, Korean automobile model built by Hyundai Motor Company * Vauxhall Equ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zebra Stripes
Zebras (, ) (subgenus ''Hippotigris'') are African equines with distinctive black-and-white striped Animal coat, coats. There are three Extant taxon, living species: Grévy's zebra (''Equus grevyi''), the plains zebra (''E. quagga''), and the mountain zebra (''E. zebra''). Zebras share the genus ''Equus (genus), Equus'' with Wild horse, horses and Asinus, asses, the three groups being the only living members of the family Equidae. Zebra stripes come in different patterns, unique to each individual. Several theories have been proposed for the function of these patterns, with most evidence supporting them as a deterrent for biting flies. Zebras inhabit East Africa, eastern and southern Africa and can be found in a variety of habitats such as savannahs, grasslands, woodlands, shrublands, and mountainous areas. Zebras are primarily grazing (behaviour), grazers and can subsist on lower-quality vegetation. They are preyed on mainly by lions, and typically flee when threatened but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mane (horse)
On horses, the mane is the hair that grows from the top of the neck of a horse or other equine, reaching from the poll (horse), poll to the withers, and includes the forelock or foretop. It is thicker and coarser than the rest of the horse's coat, and naturally grows to roughly cover the neck. Heredity plays a role, giving some horses a longer, thicker mane, and others a shorter, thinner one. Some horses, such as those used in circuses or in mounted displays such as Cavalia, have manes allowed to grow down to their knees. Others have their manes deliberately shaved completely off for style or practical purposes. When ungroomed, however, the mane usually grows no longer than the width of the horse's neck, as natural wear and tear limit its potential length. The mane is thought to keep the neck warm, and possibly to help water run off the neck if the animal cannot obtain shelter from the rain. It also provides some fly protection to the front of the horse, although the tail is us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whiskers
Whiskers, also known as vibrissae (; vibrissa; ) are a type of stiff, functional hair used by most therian mammals to sense their environment. These hairs are finely specialised for this purpose, whereas other types of hair are coarser as tactile sensors. Although whiskers are specifically those found around the face, vibrissae are known to grow in clusters at various places around the body. Most mammals have them, including all non-human primates and especially nocturnal mammals. Monotremes, however, lack them. Whiskers are sensitive tactile hairs that aid navigation, locomotion, exploration, hunting, social touch and perform other functions. This article is primarily about the specialised sensing hairs of mammals, but some birds, fish, insects, crustaceans and other arthropods are known to have similar structures also used to sense the environment. Etymology Vibrissae (from Latin 'to vibrate') from the characteristic motion seen in a small rodent that is otherwise sitti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equus Grevyi 01
Equus may refer to: * ''Equus'' (genus), a genus of animals including horses, donkeys and zebras * ''Equus'' (play), a play by Peter Shaffer * ''Equus'' (film), a film adaptation of the Peter Shaffer play * Equus (comics), a comic book character; an opponent of Superman * ''Equus'' (magazine), American monthly lifestyle magazine for horse enthusiasts Music * "Equus", a composition for concert band by Eric Whitacre * "Equus", a song by Blonde Redhead from ''Misery Is a Butterfly'' * "Equus", a song by the Cherry Poppin' Daddies off their 1994 album ''Rapid City Muscle Car'' Transportation *Equus Automotive, an American muscle car producer * Hyundai Equus, Korean automobile model built by Hyundai Motor Company *Vauxhall Equus, 1978 concept car See also *Eques (ancient Rome) The (; , though sometimes referred to as "knights" in English) constituted the second of the property/social-based classes of ancient Rome, ranking below the senatorial class. A member of the equest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympatric
In biology, two closely related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter each other. An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a product of reproductive isolation – which prevents hybrid offspring from being viable or able to reproduce, thereby reducing gene flow – that results in genetic divergence. Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. Sympatric species or taxa in secondary contact may or may not hybrid (biology), interbreed. Types of populations Four main types of population pairs exist in nature. Sympatric populations (or species) contrast with parapatric populations, which contact one another in adjacent but not sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 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] |
Monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A '' polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch (geology), epoch in the geologic time scale that extends from 5.33 to 2.58See the 2014 version of the ICS geologic time scale million years ago (Ma). It is the second and most recent epoch of the Neogene Period in the Cenozoic, Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the four most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian Stage, which lasted from 2.59 to 1.81 Ma, and is now included in the Pleistocene. As with other older geologic periods, the Stratum, geological strata that define the start and end are well-identified but the exact dates of the start a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethiopian Empire
The Ethiopian Empire, historically known as Abyssinia or simply Ethiopia, was a sovereign state that encompassed the present-day territories of Ethiopia and Eritrea. It existed from the establishment of the Solomonic dynasty by Yekuno Amlak around 1270 until the 1974 Ethiopian coup d'état, 1974 coup d'état by the Derg, which ended the reign of the final Emperor, Haile Selassie. In the late 19th century, under Emperor Menelik II, the Menelik II's conquests, empire expanded significantly to the south, and in 1952, Federation of Ethiopia and Eritrea, Eritrea was federated under Selassie's rule. Despite being surrounded by hostile forces throughout much of its history, the empire maintained a kingdom centered on its Orthodox Tewahedo, ancient Christian heritage. Founded in 1270 by Yekuno Amlak, who claimed to descend from the last Kingdom of Aksum, Aksumite king and ultimately King Solomon and the Queen of Sheba, it replaced the Agaw people, Agaw Zagwe Kingdom, kingdom of the Za ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
