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Mole Rat
Mole-rat or mole rat can refer to several groups of burrowing Old World rodents: * Bathyergidae, a family of about 20 hystricognath species in six genera from Africa also called blesmols. *''Heterocephalus glaber'', the naked mole-rat. * Spalacidae, a family of about 30 muroid species in six genera from Eurasia and northeast Africa, including: **''Tachyoryctes'', a genus of about 15 species from Africa; ** Blind mole rats (Spalacinae), a subfamily of about 15 living species in the genus ''Spalax'' from southeastern Europe, southwestern Asia, and northeastern Africa; ** Zokors (Myospalacinae), occasionally called mole-rats, about eight species from central and eastern Asia. * In the family Muridae: ** ''Nesokia indica'' from southern and southwestern Asia and Egypt, also known as the short-tailed mole-rat. ** ''Bandicota bengalensis'' from southern Asia, also known as the Indian mole-rat. {{Animal common name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hystricognath
The Hystricognathi are an infraorder of rodents, distinguished from other rodents by the bone structure of their skulls. The masseter medialis (a jaw muscle) passes partially through a hole below each eye socket (called the infraorbital foramen) and connects to the bone on the opposite side. This, together with their lack of an infraorbital plate and the relative size of the infraorbital foramen, distinguishes hystricognaths from other rodent groups. The 18 families within the Hystricognathi are divided into two parvorders, the Phiomorpha and the Caviomorpha. The Caviomorpha are mostly native to South America, with a few species in the Caribbean and North America, while the Phiomorpha occur in the Old World. Behavior Play behavior has been observed in seven hystricognath families. The caviomorphs chase each other, play-wrestle, and gallop. The longer-legged species chase more often than the shorter-legged species. They also rotate their heads and body muscles as a f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterocephalus Glaber
The naked mole-rat (''Heterocephalus glaber''), also known as the sand puppy, is a burrowing rodent native to the Horn of Africa and parts of Kenya, notably in Somali regions. It is closely related to the blesmols and is the only species in the genus ''Heterocephalus''. The naked mole-rat exhibits a highly unusual set of physiological and behavioral traits that allow it to thrive in a harsh underground environment; most notably its being the only mammalian thermoconformer with an almost entirely ectothermic (cold-blooded) form of body temperature regulation, as well as exhibiting eusociality, a complex social structure including a reproductive division of labor, separation of reproductive and non-reproductive castes, and cooperative care of young. The closely related Damaraland mole-rat (''Fukomys damarensis'') is the only other known eusocial mammal. Naked mole-rats lack pain sensitivity in their skin, and have very low metabolic and respiratory rates. The animal also is r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spalacidae
The Spalacidae, or spalacids, are a family of rodents in the large and complex superfamily Muroidea. They are native to eastern Asia, the Horn of Africa, the Middle East, and southeastern Europe. It includes the blind mole-rats, bamboo rats, mole-rats, and zokors. This family represents the oldest split (excluding perhaps the Platacanthomyidae) in the muroid superfamily, and comprises animals adapted to a subterranean way of life. These rodents were thought to have evolved adaptations to living underground independently until recent phylogenetic studies demonstrated they form a monophyletic group. Members of the Spalacidae are often placed in the family Muridae along with all other members of the Muroidea. Characteristics Spalacids are mouse- to rat-sized rodents, adapted to burrowing and living underground. They have short limbs, wedge-shaped skulls, strong neck muscles, large incisor teeth, and small eyes and external ears. In the zokors, which dig primarily with their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muroid
The Muroidea are a large superfamily of rodents, including mice, rats, voles, hamsters, lemmings, gerbils, and many other relatives. Although the Muroidea originated in Eurasia, they occupy a vast variety of habitats on every continent except Antarctica. Some authorities have placed all members of this group into a single family, Muridae, due to difficulties in determining how the subfamilies are related to one another. Many of the families within the Muroidea superfamily have more variations between the families than between the different clades. A possible explanation for the variations in rodents is because of the location of these rodents; these changes could have been due to radiation or the overall environment they migrated to or originated in. The following taxonomy is based on recent well-supported molecular phylogenies. The muroids are classified in six families, 19 subfamilies, around 280 genera, and at least 1,750 species. Taxonomy *Family Platacanthomyidae ( s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tachyoryctes
''Tachyoryctes'' is a genus of rodent in the family Spalacidae. It contains the following species: * Ankole African mole-rat (''T. ankoliae'') * Mianzini African mole-rat (''T. annectens'') * Aberdare Mountains African mole-rat (''T. audax'') * Demon African mole-rat (''T. daemon'') * Kenyan African mole-rat (''T. ibeanus'') * Big-headed African mole-rat (''T. macrocephalus'') * Navivasha African mole-rat (''T. naivashae'') * King African mole-rat (''T. rex'') * Rwanda African mole-rat (''T. ruandae'') * Rudd's African mole-rat (''T. ruddi'') * Embi African mole-rat (''T. spalacinus'') * Northeast African mole-rat (''T. splendens'') * Storey's African mole-rat (''T. storeyi'') Some authorities place all the species in this genus except ''T. macrocephalus'' in one species, the East African mole-rat, in which case ''T. splendens'' is used for the entire group. This taxonomy is followed by the IUCN Red List The International Union for Conservation of Nature (IUCN) Red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blind Mole Rat
The blind mole-rats, also known as the fossorial or subterranean mole rats, are a subfamily (Spalacinae) of rodents in the family Spalacidae, found in eastern Europe and Western Asia, western and central Asia. The Hystricognathi, hystricognath mole-rats of the family Bathyergidae are completely unrelated, but some other forms are also in the family Spalacidae. Zokors (subfamily Myospalacinae), root rats, and bamboo rats (subfamily Rhizomyinae) are spalacids also sometimes referred to as mole rats. Blind mole-rats are in the Family (biology), family Spalacidae, but are unique enough to be given a separate subfamily, Spalacinae. Alternate opinions on Taxonomy (biology), taxonomy consider the blind mole-rats to be the only members of the family Spalacidae and rank other spalacid subfamilies as full families. Other authors group all members of the Taxonomic rank, superfamily Muroidea into a single family, Muridae. The Spalacinae contains two Genus, genera and eight species. Some aut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spalax
''Spalax'' is a genus of rodent in the family Spalacidae, subfamily Spalacinae (blind mole-rats). It is one of two extant genera in the subfamily Spalacinae, alongside '' Nannospalax''.'''' Species in this genus are found in eastern Europe and western & central Asia. They are completely blind and have a subterranean lifestyle. Taxonomy Prior to 2013, ''Spalax'' was widely considered the only member of Spalacinae, with all blind mole-rat species being grouped within it. However, phylogenetic and morphological evidence supported some of the species within it forming a distinct lineage that diverged from the others during the Late Miocene, when a marine barrier formed between Anatolia and the Balkans. These species were reclassified into the genus '' Nannospalax'', making ''Spalax'' one of two extant spalacine genera.'''' Species of genus ''Spalax'' * Mehely's blind mole-rat'', S. antiquus'' * Sandy blind mole-rat, ''S. arenarius'' * Giant blind mole-rat, ''S. giganteus'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zokors
Zokors are Asiatic burrowing rodents resembling mole-rats. They include two genera: '' Myospalax'' and ''Eospalax''. Zokors are native to much of China, Kazakhstan, and Siberian Russia. Traditionally, zokors were thought to be closely related to either hamsters ( Cricetinae) or voles (Arvicolinae), but recent molecular phylogenetic studies have demonstrated they are more closely related to blind mole-rats ( Spalacinae) and root and bamboo rats ( Rhizomyinae) in the family Spalacidae. It appears that one of the first important evolutionary splits in muroid rodents is between burrowing forms and nonburrowing forms. Unlike the other spalacids, which primarily use their incisors, zokors use their powerful front claws for digging. They have small eyes and no external ears. Zokors feed on plant matter such as tubers and seeds. Taxonomy Subfamily Myospalacinae *Genus '' Myospalax'' **''Myospalax myospalax'' species group *** False zokor, ''M. aspalax'' *** Siberian zokor, '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muridae
The Muridae, or murids, are either the largest or second-largest family of rodents and of mammals, containing approximately 870 species, including many species of mice, rats, and gerbils found naturally throughout Eurasia, Africa, and Australia. The name Muridae comes from the Latin ' (genitive '), meaning "mouse", since all true mice belong to the family, with the more typical mice belonging to the genus ''Mus (genus), Mus''. Distribution and habitat Murids are found nearly everywhere in the world, though many subfamilies have narrower ranges. Murids are not found in Antarctica or many oceanic islands. Although none of them are native to the Americas, a few species, notably the house mouse and black rat, have been introduced worldwide. Murids occupy a broad range of ecosystems from tropical forests to tundras. Fossorial, arboreal, and semiaquatic murid species occur, though most are terrestrial animals. The extensive list of niches filled by murids helps to explain their relat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nesokia Indica
The short-tailed bandicoot rat (''Nesokia indica'') is a species of rodent in the family Muridae. Other common names include short-tailed mole-rat, Indian bandicoot, bandicoot-rat, flat-tooth rat and short-tailed nesokia. Characteristics The short-tailed bandicoot rat is generally brown on the upper parts and lighter on the underside, sometimes with a white patch on the throat. It has long, dense and soft hair in the winter, but the hair is short, sparse and stubbly in the summer. The broad feet and the tail are scantily haired. The forefeet have four functional digits and the hind feet have five, each with a strong, nearly straight claw. The body size varies between 182 and 388 g, and the length between 165 and 218 mm. Distribution The short-tailed bandicoot rat lives in river valleys, by lake sides, in irrigated lands and oases in Asia and North Africa, from Xinjiang (China) in the east to Egypt in the west, to Uzbekistan in the north and to Bangladesh in the south. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
