Ah! Another evolution episode before your own eyes! - SCI-ART LAB2024-03-29T02:11:15Zhttps://kkartlab.in/forum/topics/ah-another-evolution-episode-before-your-own-eyes?groupUrl=some-science&commentId=2816864%3AComment%3A156788&x=1&feed=yes&xn_auth=no
Evolution, the right picturetag:kkartlab.in,2024-01-21:2816864:Comment:2513722024-01-21T03:55:48.103ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/12363965269?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/12363965269?profile=RESIZE_710x" class="align-full"/></a></p>
<p>Evolution, the right picture</p>
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/12363965269?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/12363965269?profile=RESIZE_710x" class="align-full"/></a></p>
<p>Evolution, the right picture</p> Convergent evolution before y…tag:kkartlab.in,2019-04-19:2816864:Comment:1567882019-04-19T04:03:02.020ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a class="external_link" href="https://kkartlab.in/group/some-science/forum/topics/macro-evolution-before-your-eyes" rel="noopener nofollow" target="_blank">Convergent evolution before your eyes!…</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://kkartlab.in/group/some-science/forum/topics/macro-evolution-before-your-eyes" rel="noopener nofollow" target="_blank" class="external_link">Convergent evolution before your eyes!</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://kkartlab.in/forum/topics/ah-another-evolution-episode-before-your-own-eyes?&groupUrl=some-science" rel="noopener nofollow" target="_blank" class="external_link">Ah! Another evolution episode before your own eyes!</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://www.quora.com/What-is-the-evidence-for-biological-evolution-and-what-is-the-evidence-supporting-creationism">What is the evidence for biological evolution and what is the evide...</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://www.quantamagazine.org/20160629-new-lizard-shows-evolution-is-predictable/" rel="noopener nofollow" target="_blank" class="external_link">New Lizard Shows Evolution’s Predictability | Quanta Magazine</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://www.scientificamerican.com/article/15-answers-to-creationist/?utm_campaign=buffer&utm_content=bufferb5a0d&utm_medium=social&utm_source=twitter.com" rel="noopener nofollow" target="_blank" class="external_link">15 Answers to Creationist Nonsense</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="http://science.sciencemag.org/content/214/4516/82?__hsfp=347010162&__hssc=13887208.1.1474683948325&__hstc=13887208.86748d9ecf6dcf9a4b5129c1a7b82e65.1472271159416.1472271159420.1474683948325.3" rel="noopener nofollow" target="_blank" class="external_link">Intense Natural Selection in a Population of Darwin's Finches (Geos...</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://elifesciences.org/content/4/e12386?utm_campaign=elife-alerts&utm_content=fulltext&utm_medium=email&utm_source=content_alert" rel="noopener nofollow" target="_blank" class="external_link">Evolution retraces its steps to advance</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="http://www.sciencemag.org/news/2007/12/human-evolution-speeding" rel="noopener nofollow" target="_blank" class="external_link">Human Evolution Is Speeding Up</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="http://www.pnas.org/content/108/41/17040" rel="noopener nofollow" target="_blank" class="external_link">Evidence for evolution in response to natural selection in a contem...</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container">--</span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://kkartlab.in/group/some-science/forum/topics/macro-evolution-before-your-eyes" rel="noopener nofollow" target="_blank" class="external_link">Convergent evolution before your eyes!</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://kkartlab.in/forum/topics/ah-another-evolution-episode-before-your-own-eyes?&groupUrl=some-science" rel="noopener nofollow" target="_blank" class="external_link">Ah! Another evolution episode before your own eyes!</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://www.quora.com/What-is-the-evidence-for-biological-evolution-and-what-is-the-evidence-supporting-creationism">What is the evidence for biological evolution and what is the evide...</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://www.quantamagazine.org/20160629-new-lizard-shows-evolution-is-predictable/" rel="noopener nofollow" target="_blank" class="external_link">New Lizard Shows Evolution’s Predictability | Quanta Magazine</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://www.scientificamerican.com/article/15-answers-to-creationist/?utm_campaign=buffer&utm_content=bufferb5a0d&utm_medium=social&utm_source=twitter.com" rel="noopener nofollow" target="_blank" class="external_link">15 Answers to Creationist Nonsense</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="http://science.sciencemag.org/content/214/4516/82?__hsfp=347010162&__hssc=13887208.1.1474683948325&__hstc=13887208.86748d9ecf6dcf9a4b5129c1a7b82e65.1472271159416.1472271159420.1474683948325.3" rel="noopener nofollow" target="_blank" class="external_link">Intense Natural Selection in a Population of Darwin's Finches (Geos...</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="https://elifesciences.org/content/4/e12386?utm_campaign=elife-alerts&utm_content=fulltext&utm_medium=email&utm_source=content_alert" rel="noopener nofollow" target="_blank" class="external_link">Evolution retraces its steps to advance</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="http://www.sciencemag.org/news/2007/12/human-evolution-speeding" rel="noopener nofollow" target="_blank" class="external_link">Human Evolution Is Speeding Up</a></span></p>
<p class="ui_qtext_para u-ltr u-text-align--start"><span class="qlink_container"><a href="http://www.pnas.org/content/108/41/17040" rel="noopener nofollow" target="_blank" class="external_link">Evidence for evolution in response to natural selection in a contem...</a></span></p> Metabolism: Evolution retrace…tag:kkartlab.in,2015-12-16:2816864:Comment:1334582015-12-16T02:00:44.689ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p>Metabolism: Evolution retraces its steps to advance<br></br> Bacteria in a long-term evolution experiment evolved a new metabolic trait via two separate mutations with opposite effects.…<br></br></p>
<p>Metabolism: Evolution retraces its steps to advance<br/> Bacteria in a long-term evolution experiment evolved a new metabolic trait via two separate mutations with opposite effects.<br/>
<a href="http://elifesciences.org/content/4/e12386?utm_source=content_alert&utm_medium=email&utm_content=fulltext&utm_campaign=elife-alerts" target="_blank">http://elifesciences.org/content/4/e12386?utm_source=content_alert&utm_medium=email&utm_content=fulltext&utm_campaign=elife-alerts</a></p> What is the best evidence for…tag:kkartlab.in,2014-11-27:2816864:Comment:1221302014-11-27T03:19:22.997ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p>What is the best evidence for evolution?<br></br> <a href="http://www.quora.com/What-is-the-best-evidence-for-evolution" target="_blank">http://www.quora.com/What-is-the-best-evidence-for-evolution</a></p>
<p>--</p>
<p><a href="http://www.quora.com/Why-is-evolution-not-a-scientific-law" target="_blank">http://www.quora.com/Why-is-evolution-not-a-scientific-law</a></p>
<p>--</p>
<h1>A microbe that has not changed for 2.3 billion years</h1>
<p>An international team of scientists has discovered a…</p>
<p>What is the best evidence for evolution?<br/> <a href="http://www.quora.com/What-is-the-best-evidence-for-evolution" target="_blank">http://www.quora.com/What-is-the-best-evidence-for-evolution</a></p>
<p>--</p>
<p><a href="http://www.quora.com/Why-is-evolution-not-a-scientific-law" target="_blank">http://www.quora.com/Why-is-evolution-not-a-scientific-law</a></p>
<p>--</p>
<h1>A microbe that has not changed for 2.3 billion years</h1>
<p>An international team of scientists has discovered a deep sea microbe that has not evolved (changed) for over 2 billion years. This is the greatest time for which no evolutionary changes have been observed in any living species till now. <br/><br/> Does it mean that an exception has been found for Charles Darwin's theory of evolution? No, say the researchers. In fact the organisms' lack of evolution actually supports. <br/><br/> The findings are published online today by the Proceedings of the National Academy of Sciences.</p>
<p>The scientists examined tiny sulfur bacteria that are 1.8 billion years old and were preserved in rocks from Western Australia's coastal waters. Using cutting-edge technology, they found that the bacteria look the same as bacteria of the same region from 2.3 billion years ago—and that both sets of ancient bacteria are indistinguishable from modern sulfur bacteria found in mud off of the coast of Chile. <br/><br/> "It seems astounding that life has not evolved for more than 2 billion years—nearly half the history of the Earth," said J. William Schopf, a professor at the University of California, Los Angeles and the study's lead author. "Given that evolution is a fact, this lack of evolution needs to be explained." <br/><br/> Charles Darwin's writings on evolution focused much more on species that had changed over time than on those that hadn't. So how do scientists explain a species living for so long without evolving? <br/><br/> "The rule of biology is not to evolve unless the physical or biological environment changes, which is consistent with Darwin," said Schopf, who also is director of UCLA's Center for the Study of Evolution and the Origin of Life. <br/><br/> The environment in which these microorganisms live has remained essentially unchanged for 3 billion years, he said. <br/><br/> "These microorganisms are well-adapted to their simple, very stable physical and biological environment," he said. "If they were in an environment that did not change but they nevertheless evolved, that would have shown that our understanding of Darwinian evolution was seriously flawed." <br/><br/> Schopf said the findings therefore provide further scientific proof for Darwin's work. "It fits perfectly with his ideas," he said. <br/><br/> The fossils Schopf analyzed date back to a substantial rise in Earth's oxygen levels known as the Great Oxidation Event, which scientists believe occurred between 2.2 billion and 2.4 billion years ago. The event also produced a dramatic increase in sulfate and nitrate—the only nutrients the microorganisms would have needed to survive in their seawater mud environment—which the scientists say enabled the bacteria to thrive and multiply. <br/><br/> Schopf used several techniques to analyze the fossils, including Raman spectroscopy—which enables scientists to look inside rocks to determine their composition and chemistry—and confocal laser scanning microscopy—which renders fossils in 3-D. He pioneered the use of both techniques for analyzing microscopic fossils preserved inside ancient rocks.</p>
<p><a href="http://www.latimes.com/science/sciencenow/la-sci-sn-microbes-deep-sea-evolution-20150202-story.html" target="_blank">http://www.latimes.com/science/sciencenow/la-sci-sn-microbes-deep-sea-evolution-20150202-story.html</a></p> 407
People who still live in…tag:kkartlab.in,2014-10-29:2816864:Comment:1215192014-10-29T06:08:45.611ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p>407</p>
<p><span id="__w2_odPECNI_toggle_link"><span id="ld_oenfep_36454"><span id="ld_oenfep_36455"><span class="inline_editor_value">People who still live in the past will see these controversies. By keeping in touch with the latest news in science, you can come in contact with facts and evidence. And scientists are seeing evolution happening before their own eyes now! Read the articles I wrote on the evidence we got recently by clicking on these links:…<br></br></span></span></span></span></p>
<p>407</p>
<p><span id="__w2_odPECNI_toggle_link"><span id="ld_oenfep_36454"><span id="ld_oenfep_36455"><span class="inline_editor_value">People who still live in the past will see these controversies. By keeping in touch with the latest news in science, you can come in contact with facts and evidence. And scientists are seeing evolution happening before their own eyes now! Read the articles I wrote on the evidence we got recently by clicking on these links:<br/> <span class="qlink_container"><a href="http://kkartlab.in/group/some-science/forum/topics/ah-another-evolution-episode-before-your-own-eyes" rel="nofollow noopener" class="external_link" target="_blank">http://kkartlab.in/group/some-sc...</a></span><br/> <br/> <span class="qlink_container"><a href="http://kkartlab.in/group/some-science/forum/topics/macro-evolution-before-your-eyes" rel="nofollow noopener" class="external_link" target="_blank">http://kkartlab.in/group/some-sc...</a></span><br/> Now it becomes easy to confront the creationists!<br/> And if you find controversies because of the ongoing inconclusive work, place all the facts before people or students, tell them why majority of the scientists agree on a particular theory and let the people decide for themselves which ones to accept.</span></span></span></span></p>
<p><span><span><span><span class="inline_editor_value"><a href="http://www.quora.com/What-is-so-bad-about-teaching-the-controversy-in-science-class" target="_blank" rel="noopener">http://www.quora.com/What-is-so-bad-about-teaching-the-controversy-...</a></span></span></span></span></p>
<p><span><span><span><span class="inline_editor_value">--</span></span></span></span></p>
<p>Microbial resistance to drugs</p>
<p><a href="https://www.quora.com/What-is-the-evidence-for-biological-evolution-and-what-is-the-evidence-supporting-creationism?redirected_qid=270331">What is the evidence for biological evolution and what is the evide...</a></p>
<p><a href="https://www.quantamagazine.org/20160629-new-lizard-shows-evolution-is-predictable/">New Lizard Shows Evolution’s Predictability | Quanta Magazine</a></p>
<p><a href="https://www.scientificamerican.com/article/15-answers-to-creationist/?utm_content=bufferb5a0d&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer">15 Answers to Creationist Nonsense</a></p>
<p><a href="http://science.sciencemag.org/content/214/4516/82?__hstc=13887208.86748d9ecf6dcf9a4b5129c1a7b82e65.1472271159416.1472271159420.1474683948325.3&__hssc=13887208.1.1474683948325&__hsfp=347010162">Intense Natural Selection in a Population of Darwin's Finches (Geos...</a></p>
<p><a href="https://elifesciences.org/content/4/e12386?utm_source=content_alert&utm_medium=email&utm_content=fulltext&utm_campaign=elife-alerts">Evolution retraces its steps to advance</a></p>
<p>I can give thousands of these references. It would be better if you read more about things before commenting on them.</p>
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<p><span>Mosaic evolution - where subsets of traits evolve independently of others - painted lorikeets a rainbow of colour ...</span></p>
<p><span><a href="https://phys.org/news/2020-02-mosaic-evolution-lorikeets-rainbow.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter">https://phys.org/news/2020-02-mosaic-evolution-lorikeets-rainbow.ht...</a></span></p>
<p><span>--</span></p>
<p><span>Line of defense: Scientists report surprising evolutionary shift in snakes</span></p>
<p><span><a href="https://phys.org/news/2020-02-line-defense-scientists-evolutionary-shift.html?utm_source=quora&utm_medium=referral">https://phys.org/news/2020-02-line-defense-scientists-evolutionary-...</a></span></p>
<p><span>--</span></p>
<h1 class="text-extra-large line-low mb-2">Research on soldier ants reveals that evolution can go in reverse</h1>
<p><a href="https://phys.org/news/2020-03-soldier-ants-reveals-evolution-reverse.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter">https://phys.org/news/2020-03-soldier-ants-reveals-evolution-revers...</a></p>
<p>--</p>
<h1 class="text-extra-large line-low mb-2">One of Darwin's evolution theories finally proved by Cambridge researcher</h1>
<p><a href="https://phys.org/news/2020-03-darwin-evolution-theories-cambridge.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter">https://phys.org/news/2020-03-darwin-evolution-theories-cambridge.h...</a></p>
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<h1 class="text-extra-large line-low mb-2">Ancient fish fossil reveals evolutionary origin of the human hand</h1>
<p><a href="https://phys.org/news/2020-03-ancient-fish-fossil-reveals-evolutionary.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter">https://phys.org/news/2020-03-ancient-fish-fossil-reveals-evolution...</a></p>