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The informal taxonomic rank of race is variously considered equivalent or subordinate to the rank of subspecies, and the division of anatomically modern humans (H. sapiens) into subspecies is closely tied to the recognition of major racial groupings based on human genetic variation. A subspecies cannot be recognized independently: a species ...
It has been used as a higher rank than strain, with several strains making up one race. [ 2 ] [ 3 ] Races may be genetically distinct populations of individuals within the same species , [ 4 ] or they may be defined in other ways, e.g. geographically, or physiologically. [ 5 ]
Subspecies is abbreviated as subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology , under the International Code of Zoological Nomenclature , the subspecies is the only taxonomic rank below that of species that can receive a name.
To indicate the rank of the infraspecific name, a "connecting term" is needed. Thus Poa secunda subsp. juncifolia, where "subsp". is an abbreviation for "subspecies", is the name of a subspecies of Poa secunda. [19] Hybrids can be specified either by a "hybrid formula" that specifies the parentage, or may be given a name.
The species Photobacterium damselae are among the most virulent and are divided into two subspecies: piscicida and damsela. [4] P. damselae subspecies piscicida is the causative agent of fish pasteurellosis. Bacterial colonies grow on the infected fish's spleen and kidney, eventually leading to mortality.
Every now and then, photos of weird wildlife surface on the internet and cause absolute chaos on social media.In June, the Twitterverse went wild when an old photo of a human-sized bat in the ...
In North America, the species Rangifer tarandus (locally known as caribou), [46] [47] was subdivided into five subspecies [note 2] by Banfield in 1961. [48] Caribou are classified by ecotype depending on several behavioural factors – predominant habitat use (northern, tundra, mountain, forest, boreal forest, forest-dwelling), spacing ...
Twitter users are once again obsessing over a strange creature — this time, a fish with lips and human-like teeth. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call