Melting Ice: Reconciling Convergent Evolution with Common Descent

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• published: 19 Jul 2015
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This is my rebuttal to YouTuber Ice's video linked here: https://www.youtube.com/watch?v=I5iFENR6VP4 Wherein I explain why the dichotomy between convergent evolution and common descent is bunk. ------------------- Full refutation as comments on a transcript of Ice's video (all comments welcome to be replied to): https://docs.google.com/document/d/1qiXk2xzlRKrM9t1Pwh5s6LhGy3oc4u7UfLzotuwVueU/edit?usp=sharing All studies Ice cites in order by appearance (because he doesn't link them himself): "Convergent Evolution of Hawaiian and Australo-Pacific Honeyeaters from Distant Songbird Ancestors" http://www.cell.com/current-biology/abstract/S0960-9822(08)01420-6?_returnURL=http%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982208014206%3Fshowall%3Dtrue "Convergent adaptive radiations in Madagascan and Asian ranid frogs reveal covariation between larval and adult traits" http://www.pnas.org/content/97/12/6585.short "Parallel Molecular Evolution in an Herbivore Community" http://www.sciencemag.org/content/337/6102/1634.short "Structural analysis of the nurse shark (new) antigen receptor (NAR): Molecular convergence of NAR and unusual mammalian immunoglobulins" http://www.pnas.org/content/95/20/11804.short "High homology between 6-aminohexanoate-cyclic-dimer hydrolases of Flavobacterium and Pseudomonas strains" http://www.researchgate.net/publication/20432982_High_homology_between_6-aminohexanoate-cyclic-dimer_hydrolases_of_Flavobacterium_and_Pseudomonas_strains "Emergence of Nylon Oligomer Degradation Enzymes in Pseudomonas aeruginosa PAO through Experimental Evolution" http://aem.asm.org/content/61/5/2020.full.pdf+html ------------------ Defining homology: http://www.bio.miami.edu/dana/160/160S13_5.html Defining analogy: http://www.nku.edu/~whitsonma/Bio120LSite/Bio120LReviews/Bio120LHomologyRev.html WC Worsdell's "Principles of Morphology": http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.1905.tb05890.x/pdf Humpback whale footage: https://www.youtube.com/watch?v=LPaLN_1iOZ8 Whale fin picture: http://www.locolobo.org/CetaceanEvolution.html Manatee evolution: http://manateebrain.org/07evolution/index.html Outer ear errata: During recording, I didn't consider that the folds in the outer ear served any real/tangible purpose, but I've been led to concede that the pinna folds do offer us the ability to determine directions from which sounds come, but my original point was that this characteristic is most likely to be inherited from our common ancestry with other primates. I was originally implying the pinna to be a vestigial structure as a result, but now I see it's not a very good example of a vestige after all, though it can still serve as a homologous structure nonetheless. Why males have nipples despite having no function for them: http://health.howstuffworks.com/human-body/parts/why-men-have-nipples.htm Analogous traits not deferring common ancestry: http://evolution.berkeley.edu/evolibrary/article/evo_09 ------------------------------ All comments welcome, but those restricting replies will be deleted. Video script: https://docs.google.com/document/d/1r98zWUwoIHL7pXVcfKtuYAoYNrCZkkSH4DCjRydfQ1U/edit?usp=sharing