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Discover how kids in Washington studied cycles of salmon runs and how they respond to environmental change. Also learn how you can measure the health of your local stream or determine how an endangered species life cycle is threatened by its surroundings. This resource is part of the Biology Links for One Laptop Per Child course which contains units on Exploring Life; The Cell; Genetics; Mechanisms of Evolution; The Evolutionary History of Biological Diversity; Plant Form and Function; Animal Form and Function; Ecology; and Astrobiology.
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