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Plestiodon Fasciatus
The (American) five-lined skink (''Plestiodon fasciatus'') is a species of lizard in the family Scincidae. The species is endemic to North America. It is one of the most common lizards in the eastern U.S. and one of the seven native species of lizards in Canada. Common names Other common names for ''P. fasciatus'' include blue-tailed skink (for juveniles) and red-headed skink (for adults). It is technically appropriate to call it the American five-lined skink to distinguish it from the African skink '' Trachylepis quinquetaeniata'' (otherwise known as five-lined mabuya) or the eastern red-headed skink to distinguish it from its western relative ''Plestiodon skiltonianus'' (otherwise known as the western skink). The blue-tailed skink proper is ''Cryptoblepharus egeriae'' from Christmas Island, but in North America the juveniles of any ''Eumeces'' or ''Plestiodon'' species may be called this. Description The American five-lined skink is small to medium-sized, growing to abou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Male
Male (symbol: ♂) is the sex of an organism that produces the gamete (sex cell) known as sperm, which fuses with the larger female gamete, or ovum, in the process of fertilization. A male organism cannot reproduce sexually without access to at least one ovum from a female, but some organisms can reproduce both sexually and asexually. Most male mammals, including male humans, have a Y chromosome, which codes for the production of larger amounts of testosterone to develop male reproductive organs. Not all species share a common sex-determination system. In most animals, including humans, sex is determined genetically; however, species such as ''Cymothoa exigua'' change sex depending on the number of females present in the vicinity. In humans, the word ''male'' can also be used to refer to gender in the social sense of gender role or gender identity. Overview The existence of separate sexes has evolved independently at different times and in different lineages, an example ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broad-headed Skink
The broad-headed skink or broadhead skink (''Plestiodon laticeps'') is species of lizard, endemic to the southeastern United States. The broadhead skink occurs in sympatry with the five-lined skink (''Plestiodon fasciatus'') and Southeastern five-lined skink (''Plestiodon inexpectatus'') in forest of the Southeastern United States. All three species are phenotypically similar throughout much of their development and were considered a single species prior to the mid-1930s. Description Together with the Great Plains skink it is the largest of the "'' Plestiodon'' skinks", growing from a total length of to nearly . The broad-headed skink gets its name from the wide jaws, giving the head a triangular appearance. Adult males are brown or olive brown in color and have bright orange heads during the mating season in spring. Females have five light stripes running down the back and the tail, similar to the Five-lined Skink. However, they can be distinguished by having five labial s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southeastern United States
The Southeastern United States, also referred to as the American Southeast or simply the Southeast, is a geographical region of the United States. It is located broadly on the eastern portion of the southern United States and the southern portion of the eastern United States. It comprises at least a core of states on the lower East Coast of the United States and eastern Gulf Coast. Expansively, it reaches as far north as West Virginia and Maryland (bordered to north by the Ohio River and Mason–Dixon line), and stretching as far west as Arkansas and Louisiana. There is no official U.S. government definition of the region, though various agencies and departments use different definitions. Geography The U.S. Geological Survey considers the Southeast region to be the states of Alabama, Florida, Georgia, Arkansas, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, and Tennessee, plus Puerto Rico and the United States Virgin Islands. There is no official Census Bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southeastern Five-lined Skink
''Plestiodon inexpectatus'', the southeastern five-lined skink is a common skink in the southeastern United States. Etymology The specific name, ''inexpectatus'' ("the unexpected"), is possibly a reference to the unexpected discovery of this species in 1932, almost 175 years after Linnaeus described ''Plestiodon fasciatus'', commonly known as the American five-lined skink. Description As their common name suggests, southeastern five-lined skinks have five characteristic narrow stripes along their bodies that become lighter with age. The middle stripe tends to be narrower than the others, and the dark areas between stripes are black in young skinks but become brown with age. A similar lizard, the common five-lined skink (''Plestiodon fasciatus''), is slightly smaller than the southeastern five-lined skink and has broader stripes. However, it is difficult to discriminate between these two species on the basis of physical appearance. Young southeastern five-lined skinks have a bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plestiodon
''Plestiodon'' is a genus of lizards in the family Scincidae (skinks). The genus contains many species formerly classified under the genus ''Eumeces'', except those now placed in ''Mesoscincus''. They are secretive, agile animals with a cylindrical body covered with smooth, shiny scales. They are distributed from East Asia to throughout North America from southern Canada south to Mexico, including oceanic islands such as Bermuda. Defensive mechanism The conspicuous coloring of species of ''Plestiodon'' is a survival trait: it attracts a predator's attention to the tail of the animal, which will break off when grabbed. A skink thus often manages to escape and hide under some rock, log, or fallen leaves while the predator still contemplates the wildly thrashing severed tail. (This is an instance of what is called autotomy: voluntarily shedding a body part in order to escape, and later re generating the body part.) After the tail regenerates, it usually has the same color as the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eumeces
The genus ''Eumeces'' (family Scincidae) comprises four African to Middle-Eastern skink species. Systematics Recently two taxonomic revisions have been made regarding the 19th century genus ''Eumeces''. They both resulted in similar results; the genus is paraphyletic and must be "sliced up" into several different genera. Griffith ''et al.'' (2000) proposed that the type species for ''Eumeces'', ''E. pavimentatus'', which is considered by many to be a subspecies of ''Eumeces schneiderii'', should be changed to ''Lacerta fasciata'', so that the genus name ''Eumeces'' would stay with the most species-rich clade. However, this petition has not been verified by the International Commission on Zoological Nomenclature. Schimtz ''et al.'' argued that Griffith ''et al.'' violated the Code and rejected the proposal on good grounds. Thus only the African species of the ''Eumeces schneiderii'' group belong to the genus ''Eumeces''. Within ''Eumeces'' the following species are recognized: *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christmas Island
Christmas Island, officially the Territory of Christmas Island, is an Australian external territory comprising the island of the same name. It is located in the Indian Ocean, around south of Java and Sumatra and around north-west of the closest point on the Australian mainland. It lies northwest of Perth and south of Singapore. It has an area of . Christmas Island had a population of 1,692 residents , the majority living in settlements on the northern edge of the island. The main settlement is Flying Fish Cove. Historically, Asian Australians of Chinese, Malay, and Indian descent formed the majority of the population. Today, around two-thirds of the island's population is estimated to have Straits Chinese origin (though just 22.2% of the population declared a Chinese ancestry in 2021), with significant numbers of Malays and European Australians and smaller numbers of Straits Indians and Eurasians. Several languages are in use, including English, Malay, and various ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptoblepharus Egeriae
''Cryptoblepharus egeriae'', also known commonly as the blue-tailed shinning-skink, the Christmas Island blue-tailed shinning-skink, and the Christmas Island blue-tailed skink, is a species of lizard in the family Scincidae that was once endemic to Christmas Island. The Christmas Island blue-tailed skink was discovered in 1888. (''Ablepharus egeriae'', new species, pp. 535–536). It was formerly the most abundant reptile on the island, and occurred in high numbers particularly near the human settlement. However, the Christmas Island blue-tailed skink began to decline sharply outwardly from the human settlement by the early 1990s, which coincided with the introduction of a predatory snake and the introduction of the yellow crazy ant (''Anoplolepis gracilipes'') in the mid-1980s. By 2006, the Christmas Island blue-tailed skink was on the endangered animals list, and by 2010 the Christmas Island blue-tailed skink was extinct in the wild. From 2009-2010, parks Australia and Tarong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plestiodon Skiltonianus
The western skink ''(Plestiodon skiltonianus)'' is a species of small, smooth- scaled lizard with relatively small limbs. It measures about 100 to 210 mm (about 4 to 8.25 inches) in total length (body + tail). It is one of seven species of lizards in Canada. They spend much of their day basking in the sun. Their diet ranges widely, including spiders and beetles. Western skinks will bite if grasped and will flee if they feel threatened. It is a common but secretive species whose range extends from southern British Columbia and throughout Washington, Oregon, Nevada, Utah, Idaho, and Wyoming and into western Montana and northern Arizona and Missouri. They can also live in some areas of Texas Stebbins RC (1985). ''A Field Guide to Western Reptiles and Amphibians, Second Edition, Revised''. Boston: Houghton Mifflin. 336 pp. It is widespread in northern California but primarily restricted to the coast in central and southern California. Found in a variety of habitats, this lizard i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Five-lined Mabuya
The African five-lined skink (''Trachylepis quinquetaeniata'', formerly ''Mabuya quinquetaeniata''), sometimes called rainbow mabuya, is a species of African skink in the subfamily Lygosominae. '' T. margaritifera'' is also known as the rainbow skink. Taxonomy The species has two subspecies: * ''Trachylepis quinquetaeniata quinquetaeniata'' (Lichtenstein, 1823) * ''Trachylepis quinquetaeniata riggenbachi'' (Sternfeld, 1910) '' Trachylepis margaritifera'', formerly treated as a subspecies of ''T. quinquetaeniata'', was elevated to full species status in 1998. Description ''Trachylepis quinquetaeniata'' is a medium-sized lizard reaching a length of about . The coloration of this species is quite variable, depending on the gender and the age. The scales are glossy, with metallic reflections. The basic colour is usually olive-brown or dark brown, sometimes with pearly whitish spots and with three light olive or dark brown stripes running from the head to the electric blue tail. Thes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachylepis Quinquetaeniata
The African five-lined skink (''Trachylepis quinquetaeniata'', formerly ''Mabuya quinquetaeniata''), sometimes called rainbow mabuya, is a species of African skink in the subfamily Lygosominae. '' T. margaritifera'' is also known as the rainbow skink. Taxonomy The species has two subspecies: * ''Trachylepis quinquetaeniata quinquetaeniata'' (Lichtenstein, 1823) * ''Trachylepis quinquetaeniata riggenbachi'' (Sternfeld, 1910) '' Trachylepis margaritifera'', formerly treated as a subspecies of ''T. quinquetaeniata'', was elevated to full species status in 1998. Description ''Trachylepis quinquetaeniata'' is a medium-sized lizard reaching a length of about . The coloration of this species is quite variable, depending on the gender and the age. The scales are glossy, with metallic reflections. The basic colour is usually olive-brown or dark brown, sometimes with pearly whitish spots and with three light olive or dark brown stripes running from the head to the electric blue tail. Thes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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