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<p>Open Tree of Life constructs a comprehensive, dynamic and digitally-available tree of life by synthesizing published phylogenetic trees along with taxonomic data.
The boxes below link to pages about different ways to use open tree.</p>


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<div class="maintenance-notice">
    OpenTree is back online!
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<blockquote>
    <strong>Study curation has now been restored.</strong> While repairing our systems after <a href="hack">the recent hack of our servers</a>,
    we've also implemented new features for user privacy and GDPR compliance. <br>
Please contact us via <a href="https://gitter.im/OpenTreeOfLife/public">gitter </a> with any questions.<br>
</blockquote>
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<a href="browse">Browse</a> the tree and taxonomy

<div class="boxcontainer">
<a href="browse" class="boxlink"><div>
    <img class="featured-image" src="images/tree-browse-screenshot.png" />
    <p>
    Browse the synthetic tree and taxonomy.
    You can get information about the source of the information and provide feedback.
    </p>
</div></a>
</div>


<a href="contribute">Contribute</a> by adding data

<div class="boxcontainer">
<a href="contribute" class="boxlink"><div>
    <img class="featured-image" src="images/tree-curation-screenshot.png" />
    <p>
    In addition to providing feedback on the tree and taxonomy,
    you can contribute to the synthetic tree by uploading trees through our curation interface.
    </p>
</div></a>

</div>
<a href="use">Use</a> these tutorials to get started

<div class="boxcontainer">
<a href="use" class="boxlink"><div>
    <img class="featured-image" src="images/OT+GBIF.png" />
    <p>
    We provide web-service APIs to make our data and tree estimates available
    for use by anyone.
    Click this box to see workshop materials, tutorials, and examples of ways to use the Open Tree of Life.
</p>
</div></a>
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<a href="develop">Developer</a> resources

<div class="boxcontainer">
<a href="develop" class="boxlink"><div>
<p>
   💻 👩‍💻 &nbsp;&nbsp;&nbsp;&nbsp; Interested in contributing source code to the Open Tree of Life?
    Clicking this box takes you to our developers' resources page.
</p><br /><br />
</div></a>
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