The Tree-Thinking Challenge

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Science  11 Nov 2005:
Vol. 310, Issue 5750, pp. 979-980
DOI: 10.1126/science.1117727

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Phylogenetic trees are widely used to study the relationships among living species and genes. In their Perspective, Baum et al. discuss how it has become apparent that trees are commonly misunderstood, leading to confusion about the concept of common ancestry. Although challenging, tree thinking should be taught as an element of evolution training at all levels.

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