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Overview: This news brief from October 2013 describes the discovery of four new species of legless lizard. Why don't we just call these animals snakes? Because of their evolutionary history... Author/Source: UC Museum of Paleontology Grade level: 9-12 Time: 20 minutes Teaching tips: This article includes a set of discussion and extension questions for use in class. It also includes hints about related lessons that might be used in conjunction with this one. Get more tips for using Evo in the News articles in your classroom. Concepts: Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details. An organism's features reflect its evolutionary history. Classification is based on evolutionary relationships. Not all similar traits are homologous; some are the result of convergent evolution. Teacher background: Classification/Phylogenetics

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