{"title":"Evolution in Action: Interplay of Environment, Constraint, and Chance.","authors":"Sudipta Tung","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>On a humid morning in coastal India, an ecologist walks through a rice-wheat field and pulls up a small weed called <i>Phalaris minor</i>. A few decades ago, this grass succumbed easily to herbicides. Today it shrugs off multiple chemicals and continues to choke the crop. Nearby, a doctor reads a report warning that <i>Mycobacterium tuberculosis</i> strains resistant to multiple antibiotics are rising across India. At a laboratory, researchers watch <i>Escherichia coli</i> bacteria adapt to UV irradiation. Halfway across the world, the medium ground finches of Daphne Major in the Galápagos Islands evolve larger or smaller beaks as the climate flips between drought and rain. Though these examples span organisms, levels of biological organization, and continents, they are united by a common logic. Each scene reflects well-documented evolutionary change unfolding in the real world, shaped by the interplay of environment, biological constraint, and chance, which forms the central focus of this article.</p>","PeriodicalId":46092,"journal":{"name":"Resonance-Journal of Science Education","volume":"31 2","pages":"213-231"},"PeriodicalIF":0.4000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7618840/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Resonance-Journal of Science Education","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"EDUCATION, SCIENTIFIC DISCIPLINES","Score":null,"Total":0}
引用次数: 0
Abstract
On a humid morning in coastal India, an ecologist walks through a rice-wheat field and pulls up a small weed called Phalaris minor. A few decades ago, this grass succumbed easily to herbicides. Today it shrugs off multiple chemicals and continues to choke the crop. Nearby, a doctor reads a report warning that Mycobacterium tuberculosis strains resistant to multiple antibiotics are rising across India. At a laboratory, researchers watch Escherichia coli bacteria adapt to UV irradiation. Halfway across the world, the medium ground finches of Daphne Major in the Galápagos Islands evolve larger or smaller beaks as the climate flips between drought and rain. Though these examples span organisms, levels of biological organization, and continents, they are united by a common logic. Each scene reflects well-documented evolutionary change unfolding in the real world, shaped by the interplay of environment, biological constraint, and chance, which forms the central focus of this article.
期刊介绍：
Resonance is a journal of science education, published monthly by the Indian Academy of Sciences, Bangalore, entering its second decade of publication. The journal is primarily directed at students and teachers at the undergraduate level, though some of the articles may go beyond this range. Resonance has a council of editors drawn from institutions all over in India, with a Chief Editor and several Associate Editors located in Bangalore. Each issue of Resonance contains articles on physics, chemistry, biology, mathematics, computer science and engineering. The format is attractive and easy to read, with photographs, illustrations, margin notes, boxes and space for comments provided. The articles are of various categories: individual general articles, series made up of several parts, concise article-in-boxes, classroom pieces, nature-watch pieces, research news, book reviews, and information and announcements useful to students and teachers. Each issue of Resonance also highlights the contributions of a chosen scientist, engineer or mathematician, with a portrait on the back cover and articles describing his or her life and work. In some cases, an article written by the scientist on a general theme is included as a Classic or a Reflections item. Some of the personalities featured so far are -- Einstein, Schroedinger, Pauli, Chandrasekhar, Raman, S N Bose, von Neumann, Turing, Darwin, McClintock, Haldane, Fisher, Lorenz, Mendel, Dobhzansky, Pauling, the Bernoullis, Fermat, Harish-Chandra, Ramanujan and Weil. Resonance invites original contributions in various branches of science and engineering and emphasizes a lucid style that will attract readers from diverse backgrounds. A helpful general rule is that at least the first one third of the article should be readily understood by a general audience. Articles may be submitted to any of the editors or directly to the editorial office. All submissions are refereed. Students and teachers are particularly encouraged to sub mit articles. Comments and suggestions about articles are also welcome.
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