Species

In biology, the most commonly used definition of species was first coined by Ernst Mayr. Species are "groups of actually or potentially interbreeding natural populations which are reproductively isolated from other such groups" (however, see other definitions of species below).

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In scientific classification, a species is assigned a two-part scientific name. The Genus is listed first (and capitalized) followed by a species epithet. For example, humans belong to the genus Homo, and are in the species Homo sapiens. The name of the species is the whole binomial not just the second term of the binomial (the specific epithet). See binomial nomenclature (also binomen, specific name, binary name, specific epithet, Nomenclature Codes).

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The scientific name of a species is properly typeset in italics. When an unknown species is being referred to this may be done by using the abbreviation "sp." in the singular or "spp." in the plural in the place of the second part of the scientific name. Note that the word "specie" is NOT the singular of "species." It refers to coined money.

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Ernst Mayr: Ernst Mayr (July 5, 1904, Kempten, Germany – February 3, 2005, Bedford, Massachusetts USA), was one of the 20th century's leading evolutionary biologists. He was at the same time a naturalist, an explorer, an ornithologist and science historian....

Population: :For the use of the word population in statistics, see statistical population....

Scientific classification: Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. Modern classification has its roots in the system of Carolus Linnaeus, who grouped species according to shared physical characteristics. These groupings have been re...

Species related Images and Photos (experimental)

Species	Species 2	Seven Species	Endangered Species (MOD)
Struthia Species	Endangered Species	Endangered Species 2012 Wall Calendar	Endangered Species 2011 Wall Calendar
Various Species of Seals. Left: Common Seal Bottom Right: Fetid Seal	Endangered Species Black Rhino and Calf in Kenya	Endangered Species 2011 Slimline Wall Calendar	Endangered Species 2012 Slimline Wall Calendar