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ActivityStudents collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. Also available in Spanish.
Scientists at Work(10 min 24 sec) This video follows scientists as they uncover the ways in which moth species in Gorongosa National Park use ultrasound to avoid being eaten by bats.
ActivityThis case study is based on the short film The Biology of Skin Color. Students use real data to propose hypotheses, make predictions, and justify claims with evidence. Also available in Spanish.
Data PointRosemary and Peter Grant studied the change in beak depths of finches on the island of Daphne Major in the Galápagos Islands after a drought.
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