Showing 1-5 of 5 Resources
Interactive Video(15 min 27 sec) Embedded quiz modules test students’ understanding as they watch a short film that explains how stickleback fish let scientists study evolution in action, identify key genes, and peer deep into the evolutionary past.
Film GuideThese classroom-ready resources complement the short film Evolving Switches, Evolving Bodies, which tells the story of the dramatic transformation of stickleback fish as they adapted to living in freshwater habitats drastically different from the ocean.
Short Film(15 min 27 sec) After the end of the last ice age 10,000 years ago, populations of marine stickleback fish became stranded in freshwater lakes dotted throughout the Northern Hemisphere in places like Alaska and British Columbia. These fish have adapted to a freshwater environment drastically different than the ocean.
ActivityAn advanced lesson that describes the role of mutations in the birth and death of genes. It includes background information, examples, video clips, and animations.
ActivityA lesson that requires students to transcribe and translate portions of the wild-type and mutant rock pocket mouse Mc1r genes and compare sequences to identify the locations and types of mutations responsible for the coat color variation described in the film. Also available in Spanish.
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