speciesism first appeared during a protest against animal experimentation in 1970. Philosophers and animal rights advocates state that speciesism plays...

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...

now known as the anti-speciesism critique. Waldau writes that this original definition of the term – in effect, human-speciesism – has been extended by...

Speciesism: The Movie is a 2013 documentary film by American director Mark Devries. It explores the concept and practice of speciesism, the assignment...

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...

An invasive species is an introduced species that harms its new environment. Invasive species adversely affect habitats and bioregions, causing ecological...

On the Origin of Species (or, more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle...

International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is...

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...

system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which...

The World Day for the End of Speciesism (WoDES) is an international event aimed at denouncing speciesism, which is discrimination against non-human animals...

In zoological nomenclature, a type species (species typica) is the species name with which the name of a genus or subgenus is considered to be permanently...

introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a...

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,...

An IUCN Red List Critically Endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature...

sentient beings based solely on their species membership is a form of unjustified discrimination known as speciesism. Many self-described humanists see themselves...

precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest...

A least-concern species is a species that has been evaluated and categorized by the International Union for Conservation of Nature (IUCN) as not being...

(shorter name for the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention) is a...

travelling between Arctic breeding grounds and the Antarctic each year. Some species of tubenoses, such as albatrosses, circle the Earth, flying over the southern...

consideration of interests opposes not only racism and sexism, but also speciesism. Jeremy Bentham argued that a being's capacity to suffer is what is morally...

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

A rare species is a group of organisms that are very uncommon, scarce, or infrequently encountered. This designation may be applied to either a plant...

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

Foundation. Its aim is to create a comprehensive open content catalogue of all species; the project is directed at scientists, rather than at the general public...

Species is a 1995 American science fiction horror film directed by Roger Donaldson and written by Dennis Feldman. It stars Ben Kingsley, Michael Madsen...

The Endangered Species Act of 1973 (ESA or "The Act"; 16 U.S.C. § 1531 et seq.) is the primary law in the United States for protecting and conserving...

the oppression of women. Speciesism is a form of oppression central to the ecofeminist concept, and the belief that speciesism is a valid form of oppression...

biological classification, subspecies (pl.: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape...

of a new species of organism and explain how it differs from species that have been previously described or related species. For a species to be considered...