The Catalogue of Life

The Catalogue of Life provides a reference list of the world's species.

catalogueoflife.org
The Catalogue of Life homepage screenshot

About The Catalogue of Life

The Catalogue of Life provides a reference list of the world's species, maintained by hundreds of global taxonomists. It shows species counts for Animalia, Plantae, Fungi and other kingdoms, with a base release verified by taxonomic experts and an Extended Release that adds data from other sources marked with an XR icon.

The site states that its information varies in quality, is still incomplete, contains errors, and cannot be guaranteed for accuracy or completeness.

Key features

  • Reference list of the world's species
  • Browse species counts for Animalia, Plantae, Fungi, and other kingdoms
  • Base release verified by taxonomic experts for COL
  • Extended Release adds data from other sources marked with XR icon
  • R client (rcol) for programmatic access
  • Access via iPhone app
Best for: People who need a reference list of the world's species for research or study.
Good for
  • Maintained by hundreds of global taxonomists
  • Base release verified by taxonomic experts specifically for COL
  • Content offered under Creative Commons Attribution 4.0 License unless otherwise indicated
Watch out for
  • Does not guarantee accuracy or completeness of information
  • Described as still incomplete and containing errors
  • Includes information with different gradients of quality

The Catalogue of Life at a glance

Type
Website
Pricing
Not confirmed. Check the site
Platforms
iOS, Web
Open source
Not stated
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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The Catalogue of Life FAQ

What is the difference between the base release and the Extended Release?
The base release is verified by taxonomic experts specifically for COL, while the Extended Release includes extra data from other sources indicated with the XR icon.
Is the Catalogue of Life complete and accurate?
No. The site states it cannot guarantee accuracy or completeness, is still incomplete, and contains errors.
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