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Teaching materials:
Teaching materials database
Found 7 resources for the concept: Not all similar traits are homologous; some are the result of convergent evolution
Eye Evolution
This worksheet guides students through an interactive online module entitled Why the Eye? on the Understanding Evolution website. Students gain a better understanding of the different types of animal eyes and how natural selection can account for the evolution of a complex organ.
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Evo in the news: The new shrew that's not
This news brief from March of 2008 describes scientists' discovery of a new mammal species, a giant elephant shrew. Though elephant shrews resemble regular shrews, recent genetic evidence suggests that elephant shrews actually sprang from a much older (and perhaps more charismatic) branch of the tree
of life - the one belonging to elephants and their relatives.
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Why the eye?
Eyes are something of an icon of evolution. How did such an integrated, multi-part adaptation evolve? While many different animals have complex eyes, untangling their evolutionary history reveals both remarkable diversity and surprising similarity.
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Evolution connection: Photosynthesis 2
This short slide set explains uniformity and variation in the process of photosynthesis across all life using evolutionary history. Save the slide set to your computer to view the explanation and notes that go along with each slide.
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Monkey opsins
This case study in the form of a set of PowerPoint slides examines the evolution of trichromatic vision in old world monkeys.
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