3A-Examples of Evolution

3A-Examples of Evolution - Observed Examples of Evolution...

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Observed Examples of Evolution 1 BIOL 112 Observed Examples of Evolution Observed Examples of Evolution BIOL 112 Observed Speciation ± Has anyone seen a species emerge? ± Several cases documented of the generation of genetically isolated populations (species) in the laboratory ± But also a number of examples of what appears to be speciation in action in field populations ± http://www.talkorigins.org/faqs/faq- speciation.html for a long list of examples and references BIOL 112 Recent, Well-Documented Examples of Evolutionary Changes ± Stephanodiscus evolution ± Rhagoletis evolution ± Both examples of rapid evolutionary changes in natural populations with good documentation ± Certainly not the only such examples. Look at: http://www.talkorigins.org/ for other discussions on all aspects of evolution BIOL 112 Stephanodiscus yellowstonensis ± Centric diatom (alga), found in only in one lake in Yellowstone Lake, Wyoming ± Descended from common diatom, Stephanodiscus niagarae, found in many lakes in North America ± Careful analysis of sediment record in lake back to 14,000 yrs BIOL 112 Science Museum of Minnesota BIOL 112
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Observed Examples of Evolution 2 BIOL 112 Lake History ± Lake started at the end of the last glacier
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3A-Examples of Evolution - Observed Examples of Evolution...

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