Help scientists build the geneology of all species living and extinct.

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Building the evolutionary Tree of Life means knowing how all species are related to each other. With the tree we can interpret all sorts of interesting ideas about how, when and why new features, like eyes and flight and flowers evolved.


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Why Scientists Need You

There may be as many as 10 million living species on Earth and hundreds of thousands of fossil species. We need data from all of them to build the tree - a big job!
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