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6-12

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Part of Evolution Series
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All in the Family

Are you, your cat, and your lunch related? Since all organisms descended from a single bacterial ancestor, the answer is yes. Of course, some of us are more closely related than others, depending on where in the "family tree" or common ancestor resides. In this Evolution Web feature, you'll learn how to assemble accurate evolutionary trees by comparing features of living organisms. Be prepared for some surprises.

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