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The hierarchy of biological classification's eight major taxonomic ranks. A genus contains one or more species. Minor intermediate ranks are not shown. A species (pl.: species) is a population of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. [1]
A simple folded paper plane Folding instructions for a traditional paper dart. A paper plane (also known as a paper airplane or paper dart in American English, or paper aeroplane in British English) is a toy aircraft, usually a glider, made out of a single folded sheet of paper or paperboard.
A species description is a formal scientific description of a newly encountered species, typically articulated through a scientific publication. Its purpose is to provide a clear description of a new species of organism and explain how it differs from species that have been previously described or related species.
There are numerous species of cichlids that demonstrate dramatic variations in morphology. Given the right circumstances, and enough time, evolution leads to the emergence of new species. Scientists have struggled to find a precise and all-inclusive definition of species. Ernst Mayr defined a species as a population or group of populations ...
Zoology is the branch of science dealing with animals. A species can be defined as the largest group of organisms in which any two individuals of the appropriate sex can produce fertile offspring; about 1.5 million species of animal have been described and it has been estimated that as many as 8 million animal species may exist. [ 21 ]
For the purposes of the Endangered Species Act a "species" is defined to include "any distinct population segment of any species of vertebrate fish or wildlife which interbreeds when mature." However, the act does not define what constitutes a "distinct population segment", but this is generally considered to be synonymous with an ...
In the beginning of the 20th century, one of the most prolific biological illustrators, Ernst Haeckel, discovered, described, and named thousands of new species, and his published work, Kunstformen der Natur, contained hundreds of prints of various organisms, many of which were first described by Haeckel himself.
The subfamily contains seven species. Of the six species in the genus Petaurus, the sugar glider and the Biak glider are the most common species. The lone species in the genus Gymnobelideus, Leadbeater's possum has only a vestigial gliding membrane. Greater glider (Petauroides volans). The only species of the genus Petauroides of the family ...