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Whale Evolution PowerPoint and Cooperative Group Activity Middle School 6 th /7 th grade Life Science and 9th grade Biology Learning Outcomes : PowerPoint Presentation (P3): Students will make observations on the skeletal fossils of whale ancestors. They will hypothesize about the identity of the specimen and its relationship to modern animals based on anatomical features. Whale Evolution Group Activity (WEGA): Students will observe similarities and differences between skeletal drawings of ancestral whales, and hypothesize about the relationship between the 6 drawings. Students will understand how fossils and anatomical relationships between organisms are used as evidence to support the theory of evolution. Procedure: P3: With each slide, have students make observations, then use observations to support their hypothesis of animal identity, habitat, mode of transportation, ancient or modern species, related species. WEGA: Groups of 4 students receive all drawings. Goal is to establish relationships between the species based on observed similar anatomical features. At end of activity, reveal the whale evolutionary line to whole class. Follow-up questions: 1. Summarize how anatomy is used as evidence for evolution. 2. Do you think similar anatomical structures are valid data for establishing evolutionary lines? Why or why not? 3. How is the fossil record used to support evolution?