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Pack Rat
A pack rat or packrat, also called a woodrat or trade rat, are any species in the North and Central American rodent genus ''Neotoma''. Pack rats have a rat-like appearance, with long tails, large ears, and large, black eyes. Pack rats are noticeably larger than deer mice, harvest mice, and grasshopper mice, and are usually somewhat larger than cotton rats. Species ''Neotoma'' includes three subgenera: * Subgenus ''Neotoma'' ** '' Neotoma albigula'' - white-throated woodrat *** ''Neotoma albigula varia'' - Turner Island woodrat ** '' Neotoma angustapalata'' - Tamaulipan woodrat ** '' Neotoma bryanti'' - Bryant's woodrat *** '' Neotoma bryanti anthonyi'' - Anthony's woodrat † *** '' Neotoma bryanti bunkeri'' - Bunker's woodrat † *** '' Neotoma bryanti martinensis'' - San Martín Island woodrat † ** '' Neotoma chrysomelas'' - Nicaraguan woodrat ** '' Neotoma devia'' - Arizona woodrat ** '' Neotoma findleyi'' - Findley's woodrat † ** '' Neotoma floridana'' - eastern woodra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenozoic
The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configuration of continents. It is the latest of three geological eras since complex life evolved, preceded by the Mesozoic and Paleozoic. It started with the Cretaceous–Paleogene extinction event, when many species, including the non-avian dinosaurs, became extinct in an event attributed by most experts to the impact of a large asteroid or other celestial body, the Chicxulub impactor. The Cenozoic is also known as the Age of Mammals because the terrestrial animals that dominated both hemispheres were mammalsthe eutherians (placentals) in the northern hemisphere and the metatherians (marsupials, now mainly restricted to Australia) in the southern hemisphere. The extinction of many groups allowed mammals and birds to greatly diversify so tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotoma Magister
The Allegheny woodrat (''Neotoma magister''), is a species of " pack rat" in the genus ''Neotoma''. Once believed to be a subspecies of the eastern woodrat (''Neotoma floridana''), extensive DNA analysis has proven it to be a distinct species. Description The Allegheny woodrat is a medium-sized rodent almost indistinguishable from the closely related eastern woodrat, although slightly larger on average, and often with longer whiskers. Adults typically range from in total length, including a tail measuring . Males weigh on average, while females are slightly smaller, weighing an average of . It is the second-largest member of the native North American rats, and can weigh up to a pound, roughly the size of an eastern gray squirrel. The fur is long, soft, and brownish-gray or cinnamon in color, while the undersides and feet are white. They have large eyes, and naked ears. Their most distinguishing feature is their tails: while the tails of European rats are naked with only sligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotoma Albigula Varia
The Turner Island woodrat (''Neotoma albigula varia'') is a subspecies of rodent in the family Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At almost 608 species, it is the second-largest family of mammals, and has me .... It is found only in Mexico. References *Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. Neotoma Mammals described in 1932 Taxonomy articles created by Polbot {{Neotoma-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cotton Rat
A cotton rat is any member of the rodent genus ''Sigmodon''. Their name derives from their damaging effects on cotton as well as other plantation crops, such as sugarcane, corn, peanut and rice. Cotton rats have small ears and dark coats, and are found in North and South America. Members of this genus are distributed in the Southwestern United States, Mexico, Central America, and South American countries of: Venezuela, Ecuador, Colombia, Peru, Brazil, Guyana, and Suriname. Many of the species are found in Mexico. They are primarily herbivores. The molars of cotton rats are S-shaped when viewed from above. The genus name literally means S-tooth. '' Sigmodon hispidus'' was the first model organism to be used in polio Poliomyelitis, commonly shortened to polio, is an infectious disease caused by the poliovirus. Approximately 70% of cases are asymptomatic; mild symptoms which can occur include sore throat and fever; in a proportion of cases more severe sy ... research. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grasshopper Mice
Grasshopper mice are rodents of the genus ''Onychomys'', occurring in North America. They feed on insects and other arthropods. Biology The three species in this genus of New World mice are only distantly related to the common house mouse, '' Mus musculus''. They are endemic to the United States and Mexico. The southern grasshopper mouse has around a long body and a tail that is generally long. Its behavior is distinct from other mice. It is a carnivorous rodent, dining on insects (such as grasshoppers), worms, spiders, centipedes, scorpions, snakes, and even other mice. It also stalks its prey in the manner of a cat, sneaking up quietly, and defends its territory by "howling" like a small wolf. The grasshopper mouse is known to be immune to various venoms released by its prey ( scorpions, snakes, etc.). Grasshopper mice are nocturnal and avoid exposure to bright light. Ecology Diet Grasshopper mice prey on highly venomous arthropods. One example is centipedes t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reithrodontomys
''Reithrodontomys'' is the genus of groove-toothed New World harvest mice. Species This genus contains these species: *Baker's small-toothed harvest mouse, ''Reithrodontomys bakeri'' *Short-nosed harvest mouse, ''Reithrodontomys brevirostris'' * Sonoran harvest mouse, ''Reithrodontomys burti'' * Volcano harvest mouse, ''Reithrodontomys chrysopsis'' * Chiriqui harvest mouse, ''Reithrodontomys creper'' * Darien harvest mouse, ''Reithrodontomys darienensis'' *Fulvous harvest mouse, ''Reithrodontomys fulvescens'' *Slender harvest mouse, ''Reithrodontomys gracilis'' * Hairy harvest mouse, ''Reithrodontomys hirsutus'' *Eastern harvest mouse, ''Reithrodontomys humulis'' *Western harvest mouse, ''Reithrodontomys megalotis'' * Mexican harvest mouse, ''Reithrodontomys mexicanus'' * Small-toothed harvest mouse, ''Reithrodontomys microdon'' *Plains harvest mouse, ''Reithrodontomys montanus'' *Small harvest mouse, ''Reithrodontomys musseri'' * Nicaraguan harvest mouse, ''Reithrodontomys parado ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deer Mice
Deer or true deer are hoofed ruminant mammals forming the family Cervidae. The two main groups of deer are the Cervinae, including the muntjac, the elk (wapiti), the red deer, and the fallow deer; and the Capreolinae, including the reindeer (caribou), white-tailed deer, the roe deer, and the moose. Male deer of all species (except the water deer), as well as female reindeer, grow and shed new antlers each year. In this they differ from permanently horned antelope, which are part of a different family (Bovidae) within the same order of even-toed ungulates (Artiodactyla). The musk deer (Moschidae) of Asia and chevrotains (Tragulidae) of tropical African and Asian forests are separate families that are also in the ruminant clade Ruminantia; they are not especially closely related to Cervidae. Deer appear in art from Paleolithic cave paintings onwards, and they have played a role in mythology, religion, and literature throughout history, as well as in heraldry, such as red d ... [...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 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotoma Stephensi
Stephen's woodrat (''Neotoma stephensi'') is a species of rodent in the family Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At almost 608 species, it is the second-largest family of mammals, and has me ... found in Arizona, New Mexico and Utah in the United States. References *Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. Neotoma Mammals described in 1905 Taxonomy articles created by Polbot {{Neotoma-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotoma Phenax
The Sonoran woodrat (''Neotoma phenax'') is a species of rodent in the family Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At almost 608 species, it is the second-largest family of mammals, and has me ... found only in Mexico. References * Sonoran Woodrat Endemic mammals of Mexico Near threatened fauna of North America Taxonomy articles created by Polbot Taxa named by Clinton Hart Merriam Fauna of the Sonoran Desert Sonoran–Sinaloan transition subtropical dry forest Sinaloan dry forests {{Neotoma-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotoma Palatina
A pack rat or packrat, also called a woodrat or trade rat, are any species in the North and Central American rodent genus ''Neotoma''. Pack rats have a rat-like appearance, with long tails, large ears, and large, black eyes. Pack rats are noticeably larger than deer mice, harvest mice, and grasshopper mice, and are usually somewhat larger than cotton rats. Species ''Neotoma'' includes three subgenera: * Subgenus ''Neotoma'' ** '' Neotoma albigula'' - white-throated woodrat *** ''Neotoma albigula varia'' - Turner Island woodrat ** ''Neotoma angustapalata'' - Tamaulipan woodrat ** ''Neotoma bryanti'' - Bryant's woodrat *** '' Neotoma bryanti anthonyi'' - Anthony's woodrat † *** '' Neotoma bryanti bunkeri'' - Bunker's woodrat † *** '' Neotoma bryanti martinensis'' - San Martín Island woodrat † ** '' Neotoma chrysomelas'' - Nicaraguan woodrat ** '' Neotoma devia'' - Arizona woodrat ** ''Neotoma findleyi'' - Findley's woodrat † ** '' Neotoma floridana'' - eastern woodrat ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotoma Nelsoni
Nelson's woodrat (''Neotoma nelsoni'') is a species of rodent in the family Cricetidae. It is endemic to Mexico, where it is known only from the eastern slopes of the volcanoes Orizaba and Cofre de Perote. Due to the small geographic range, isolation, and low population, the Nelson's woodrat has a higher risk for extinction. The distribution and population sizes are small. The population exists in geographic isolation, which prevents gene flow Location The Nelson's woodrat can only be found on the eastern side of the volcanoes Pico de Orizaba and Cofre de Perote in Mexico. The estimated area for where this species is located is 1,350 km2. This area includes steep slopes, coffee plantations, and a cloud forest. * Elevation range: 970–2,770 m * Climate: Humid and warm * Precipitation: Rain throughout all months of the year * Vegetation: Tropical rain forest Characteristics * Upper Body ** Cinnamon color ** White throat ** Grayish brown cheeks ** Short and silky ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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