Visit the main Encyclopedia of Life site at eol.org for information about life on earth.

One Species at a Time

Explore the diversity of lifeā€”five minutes and One Species at a Time.

Listen online.

EOL Field Guides

Explore guides created using the EOL Field Guide tool.

Help Build EOL

Graduate and undergraduate biology students are creating species pages as part of their coursework

Find out how

Biodiversity is...

...the variety of life on earth, the variation of genes within species,
and a measure of ecosystem health.

Check our our biodiversity articles to learn more


Biodiversity Literature

Explore 26 million pages of biodiversity literature online through the Biodiversity Heritage Library portal, which is linked to EOL species pages.

Biodiversity discovery doesn't end at a BioBlitz event! Your backyard and neighborhood park are full of new discoveries! Check out EOL's BioBlitz...
Collections allow you to organize lists of species, information, media, maps, and sounds - anything of interest to you from the Encyclopedia of Life...
In the ocean, a drama is playing out between two marine mollusks: sea butterflies--tiny swimming snails the size of a grain of sand (also known as...
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