Aliatypus Torridus
''Aliatypus'' is a genus of North American folding trapdoor spiders first described by C. P. Smith in 1908. They resemble members of Ctenizidae in morphology and behavior, but this is due to convergent evolution rather than direct relation. They are most closely related to members of '' Antrodiaetus'', which build collar doors. It is likely that the shift from using collar doors to using trapdoors is what allowed them to survive in hot, dry conditions where their closest relatives could not. Often found in roadside banks or ravines, they build a burrow perpendicular to the surface with a wafer-like trapdoor entrance to catch prey. Burrows are often clustered together, sometimes quite densely in more favorable positions. They are native to the western United States, where the complex landscape creates pockets of isolated species limited to small regions. As one of the most abundant genera of trapdoor spiders in California, it is argued that their sedentary lifestyle and limited ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Species
In biology, a species is the basic unit of Taxonomy (biology), 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 reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), 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 binomial nomenclature, 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 specifi ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Aliatypus Gnomus
''Aliatypus'' is a genus of North American folding trapdoor spiders first described by C. P. Smith in 1908. They resemble members of Ctenizidae in morphology and behavior, but this is due to convergent evolution rather than direct relation. They are most closely related to members of '' Antrodiaetus'', which build collar doors. It is likely that the shift from using collar doors to using trapdoors is what allowed them to survive in hot, dry conditions where their closest relatives could not. Often found in roadside banks or ravines, they build a burrow perpendicular to the surface with a wafer-like trapdoor entrance to catch prey. Burrows are often clustered together, sometimes quite densely in more favorable positions. They are native to the western United States, where the complex landscape creates pockets of isolated species limited to small regions. As one of the most abundant genera of trapdoor spiders in California, it is argued that their sedentary lifestyle and limited ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Aliatypus Trophonius
''Aliatypus'' is a genus of North American folding trapdoor spiders first described by C. P. Smith in 1908. They resemble members of Ctenizidae Ctenizidae is a small family of mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation, and silk. They may be called trapdoor spiders, as are other, similar species, such as those of the families Liphistii ... in morphology and behavior, but this is due to convergent evolution rather than direct relation. They are most closely related to members of '' Antrodiaetus'', which build collar doors. It is likely that the shift from using collar doors to using trapdoors is what allowed them to survive in hot, dry conditions where their closest relatives could not. Often found in roadside banks or ravines, they build a burrow perpendicular to the surface with a wafer-like trapdoor entrance to catch prey. Burrows are often clustered together, sometimes quite densely in more favorable positions. They ar ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Aliatypus Torridus
''Aliatypus'' is a genus of North American folding trapdoor spiders first described by C. P. Smith in 1908. They resemble members of Ctenizidae in morphology and behavior, but this is due to convergent evolution rather than direct relation. They are most closely related to members of '' Antrodiaetus'', which build collar doors. It is likely that the shift from using collar doors to using trapdoors is what allowed them to survive in hot, dry conditions where their closest relatives could not. Often found in roadside banks or ravines, they build a burrow perpendicular to the surface with a wafer-like trapdoor entrance to catch prey. Burrows are often clustered together, sometimes quite densely in more favorable positions. They are native to the western United States, where the complex landscape creates pockets of isolated species limited to small regions. As one of the most abundant genera of trapdoor spiders in California, it is argued that their sedentary lifestyle and limited ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |