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...

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...

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

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...

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

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

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...

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...