Classification is a natural human propensity—we organize our clothes, our kitchen cupboards, and our toys. This applies to the natural world, too, where animals and plants are grouped based on ...

This article was originally featured on Undark. For centuries, taxonomists have cataloged every living thing they could find. Expeditions have traveled the globe, searching for unknown species; ...

Are species constructs of the human mind? -- Why is there a species problem? -- Is the biological species a class or is it an individual? -- What are traits in taxonomy? -- Diversity within the ...

The science of taxonomy -- Principles of zoological classification -- The species category -- The polytypic species, population systematics and infraspecific categories -- Theories of biological ...

Stephen Garnett receives funding from International Union for Biological Sciences, the Australian Research Council and the National Environment Science Program Les Christidis receives funding from the ...