linkedin post 2020-06-15 04:18:08

linkedin post 2020-06-15 04:18:08

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BATS. "N. plancyi is able to detect the direction of a magnetic field even at 1/5th of the present-day field strength. This high sensitivity to magnetic fields may explain how magnetic orientation could have evolved in bats even as the Earth’s magnetic field strength varied and the polarity reversed tens of times over the past fifty million years.” http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0123205 View in LinkedIn
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linkedin post 2020-06-15 04:13:41

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MAGNETITE. “The existence of magnetite crystal chains, which lead to a magnetically oriented swimming behavior in so-called “magnetotactic bacteria”, unequivocally proves that living cells can, in principle, synthesize magnetite that will align with the geomagnetic field. However, the magnetite crystals in these bacteria are not part of an active sensory system; they only lead to passive alignment.” https://lnkd.in/eUbuD-a View in LinkedIn
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linkedin post 2020-06-14 04:48:41

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SO ENDS this two weekend indulgence in the topic of plant body plan evolution. For younger readers, it is a glimpse into the thought life of botanists who are concerned with these issues, and whose life revolves around figuring out how they came about; it is a rate chance, from the comfort of your own chair, to walk in the shoes of another person in an intellectually intimate way. This is true for all these postings, in their different disciplines. View in LinkedIn
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linkedin post 2020-06-14 04:43:08

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CONVERGED OR DIVERSIFIED. "This body plan classification scheme draws sharp attention to the extent to which body plans have diversified within or converged among the various plant lineages and how they have become confined in number in evolutionarily more derived groups." http://aob.oxfordjournals.org/content/85/4/411.full.pdf View in LinkedIn
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linkedin post 2020-06-16 04:34:37

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MAGNETIC FIELD LINES. “The magnetic compass of birds works in a way that is very different from our technical compass: it is an inclination compass that ignores polarity and instead relies on the course of the field lines and their inclination; it is finely tuned to the intensity of the local magnetic field in a narrow, but flexible functional window, and it requires short-wavelengths of light.” https://lnkd.in/dmczyTc View in LinkedIn
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linkedin post 2020-06-14 04:36:50

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BODY PLAN IRRELEVANT. "Although a number of growing point (meristematic) characteristics collectively influence whether a variety of morphological and anatomical features are achieved in a particular body part or plan (e.g. the duration of activity and the number of cells involved at each location, as well as the extent to which cells, tissues or organs differentiate or differ in symmetry, number, etc.), none of these features is considered here to be especially relevant to the fundamental distinctions that can be drawn among the four basic plant body plans." http://aob.oxfordjournals.org/content/85/4/411.full.pdf View in LinkedIn
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