linkedin post 2017-02-13 05:32:56

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DEEP VESTIGIAL STRUCTURES. "Vestigial features of humans and other organisms are well known and have long been used as key evidence for evolution. Such features include not only anatomical structures but also physiological processes, biochemical reactions, and even behaviors." Not to mention fossils of transposons derived from ancient viruses that dominate genomes. http://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-15 05:49:26

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DEVELOPMENTAL VESTIGES. "Ontogenetic changes (i.e., developmental modifications occurring during an organism’s lifespan) can be more drastic than phylogenetic changes, perhaps due to the speed and scope with which development advances, and similarly reflect major biological processes. Nipples in male mammals provide a classic example." https://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-13 05:27:01

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DARWIN ON VESTIGES. "Along with paleontological evidence from the fossil record and biogeographic evidence from species distributions, Darwin turned, naturally, to comparative anatomy, citing such well-known topics as homologous and analogous (convergent) features and similarities in skeletons and patterns of embryonic development. Darwin cited another prominent finding of comparative anatomy as an obvious line of evidence for evolution: vestigial features." http://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-13 05:21:15

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"PROGRESSIVE NOTIONS of natural philosophy and theology were simmering in Victorian England when, in 1844, the scientific establishment was rocked by the anonymous publication of Vestiges of the Natural History of Creation (Chambers [1844]). This best-selling book presented, in a highly accessible format, then-radical ideas on cosmic and biological evolution." http://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-15 05:42:03

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GOOSE BUMPS. "Piloerection, leading to ‘goose bumps’ or ‘goose pimples,’ can be considered a vestigial phenomenon in mostly hairless humans, and the arrector pili smooth muscles that pull on hair follicles and cause this autonomic reflex can be viewed as vestigial structures." https://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-12 06:58:20

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SO ENDS this thought about transient beauty and imperfection in nature and the suchness of things, one of beauty that is "imperfect, impermanent, and incomplete". The Japanese morning glory plant, which closes every day, and was bred to perfection in the Edo period in Japan is one symbol of this view of nature. There is no real equivalent of this sentiment of Wabi-Sabi in western culture, which focuses on beauty and perfection derived from Greek thinking. The next weekend Fragment continues with the morning glory. View in LinkedIn
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linkedin post 2017-02-14 06:01:21

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"HICCUPS are a vestigial motor reflex pattern (of glottal closure during inhalation, so that the vocal folds slam shut) left over from early tetrapod vertebrates, specifically the tadpole larvae of amphibians. Tadpoles undergo a ventilatory transformation from external filamentous gills to pulmonary respiration, with a consequent need to close lungs to avoid ingesting water, which is diverted to gills instead." https://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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