Hhmi speciation. Evolutionary biologists Rosemary and Peter Grant spent four decades tracking changes in body traits directly tied to survival in the famous Galápagos finches . In this episode of Crash Course Biology, we’ll learn about speciation—a process that can happen over millions of years, or within a single generation. Students watch segments of and use information from the short film The Origin of Species: The Beak of the Finch, which can be downloaded or Oct 10, 2023 · How can you tell two species apart? It’s not always simple. The so-called Cambrian Explosion is an example of relatively fast and extravagant speciation of animals, as is the speciation that occurred after major extinction events associated with environmental change in the Mesozoic and Permian. Nov 4, 2015 · Student Learning Targets Make claims and construct arguments using evidence from class discussion and from a short film on the evolution of the Galápagos finches. Speciation can be a difficult concept for students to fully comprehend, so it may be helpful to show a short (2 min. Nov 12, 2013 · Bob Kuhn describes how he uses BioInteractive resources to teach speciation to his students. Use data to make predictions about the effects of natural selection in a finch population. This Click & Learn It’s important to emphasize to students that this activity does not show how speciation occurs. hhmi. k3samenlhvt2mmkepqgkbfjncmr5fapn7iaz7r