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Overview: This article describes practical applications of phylogenetics, focusing on intriguing cases ripe for deployment in classrooms--like using phylogenetics to investigate crimes. This article appears at SpringerLink. Author/Source: Evolution: Education and Outreach Grade level: 13-16 Time: 30 minutes Teaching tips: This article is written for teachers and comes with links to additional examples, supplementary information, and classroom tips. It is also available as a pdf at http://www.springerlink.com/content/n7309n36k4j60487/fulltext.pdf Concepts: Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry. As with other scientific disciplines, evolutionary biology has applications that factor into everyday life, for example in agriculture, biodiversity and conservation biology, and medicine and health. Evolutionary trees (i.e., phylogenies or cladograms) portray hypotheses about evolutionary relationships. Evolutionary trees can be used to make inferences and predictions. Teacher background: Classification/Phylogenetics

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