A species description is a formal scientific description of a newly encountered species, typically articulated through a scientific publication. Its purpose...

Description is any type of communication that aims to make vivid a place, object, person, group, or other physical entity. Description is one of four rhetorical...

name. The description typically provides means for identifying the new species, which may not be based solely on morphology (see cryptic species), differentiating...

model, a description in mathematical language of a system Scientific theory, a description of an aspect of the natural world Species description, a formal...

Version 2014.2 of the IUCN Red List of Threatened Species identified 4574 Critically Endangered species, subspecies and varieties, stocks and subpopulations...

the IUCN Red List of Threatened Species identified 5220 (2754 animals, 1 fungus, 2464 plant, 1 protist) endangered species, subspecies and varieties, stocks...

and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually...

number of lists of fictional species: List of fictional extraterrestrials (by media type) Lists of fictional alien species: A, B, C, D, E, F, G, H, I,...

last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult...

An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction...