<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
  xmlns:news="http://www.google.com/schemas/sitemap-news/0.9"
  xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">

  <url>
    <loc>https://www.ecoticias.com/en/hans-adolf-krebs-nobel-laureate-in-medicine-the-breakdown-and-burning-of-fats-depend-to-a-large-extent-on-the-continuous-catabolism-of-carbohydrates/31115/</loc>
    <lastmod>2026-04-21T14:51:00+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-21T10:15:00-05:00</news:publication_date>
      <news:title><![CDATA[Hans Adolf Krebs, Nobel laureate in Medicine: “The breakdown and burning of fats depend, to a large extent, on the continuous catabolism of carbohydrates”]]></news:title>
      <news:keywords>Trending</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/hans-adolf-krebs-nobel-prize-medicine-citric-acid-cycle.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/a-zoo-in-the-united-states-is-building-a-46-million-african-savanna-and-the-most-striking-feature-isnt-the-giraffes-or-the-rhinos-but-a-hotel-with-a-direct-view-of-the-habitat/31107/</loc>
    <lastmod>2026-04-21T10:52:30+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-21T08:45:00-05:00</news:publication_date>
      <news:title><![CDATA[A zoo in the United States is building a $46 million African savanna, and the most striking feature isn’t the giraffes or the rhinos, but a hotel with a direct view of the habitat]]></news:title>
      <news:keywords>Economy</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/sedgwick-county-zoo-giraffe-feeding-visitors-wichita.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/in-1940-a-boy-followed-his-dog-through-a-clearing-in-the-trees-and-ended-up-entering-a-cave-that-had-remained-sealed-for-millennia-where-he-found-more-than-2000-images-and-animals-painted-17000-ye/31102/</loc>
    <lastmod>2026-04-21T10:40:55+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-21T06:30:00-05:00</news:publication_date>
      <news:title><![CDATA[In 1940, a boy followed his dog through a clearing in the trees and ended up entering a cave that had remained sealed for millennia, where he found more than 2,000 images and animals painted 17,000 years ago]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/lascaux-cave-paintings-france-prehistoric-art.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/psychology-suggests-that-the-kindest-people-dont-always-end-up-surrounded-by-close-friends-they-have-often-learned-to-be-helpful-understanding-and-available-in-ways-that-make-others-feel-car/31104/</loc>
    <lastmod>2026-04-21T10:57:09+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-21T05:53:59-05:00</news:publication_date>
      <news:title><![CDATA[Psychology suggests that the kindest people don’t always end up surrounded by close friends; they have often learned to be helpful, understanding, and available in ways that make others feel cared for, but not necessarily understood by them]]></news:title>
      <news:keywords>Trending</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/kindest-people-no-close-friends-psychology-behaviors.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/scientists-are-studying-the-digestive-tracts-of-wild-bees-and-what-theyre-discovering-is-forcing-us-to-rethink-why-some-parks-appear-green-but-are-far-less-beneficial-than-we-thought/30650/</loc>
    <lastmod>2026-04-21T08:17:15+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-21T03:17:14-05:00</news:publication_date>
      <news:title><![CDATA[Scientists are studying the digestive tracts of wild bees, and what they’re discovering is forcing us to rethink why some parks appear green but are far less beneficial than we thought]]></news:title>
      <news:keywords>Environment</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/bee-gut-dna-city-ecosystem-health.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/a-quote-attributed-to-robert-frost-has-been-circulating-in-offices-around-the-world-for-decades-and-remains-unsettling-for-one-reason-his-explanation-of-when-the-brain-stops-thinking-has-lost-none-of/31096/</loc>
    <lastmod>2026-04-20T12:02:10+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T18:30:00-05:00</news:publication_date>
      <news:title><![CDATA[A quote attributed to Robert Frost has been circulating in offices around the world for decades and remains unsettling for one reason: his explanation of when the brain stops thinking has lost none of its power]]></news:title>
      <news:keywords>Trending</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/robert-frost-winter-portrait-american-poet.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/for-the-first-time-humanity-significantly-altered-the-orbit-of-a-celestial-body/31093/</loc>
    <lastmod>2026-04-20T11:49:26+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T17:00:00-05:00</news:publication_date>
      <news:title><![CDATA[For the first time, humanity significantly altered the orbit of a celestial body]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/Nasa-dart-spacecraft-dimorphos-didymos-orbit-change.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/a-colleague-sent-olga-a-strange-photo-taken-on-a-russian-beach-and-now-scientists-believe-they-have-discovered-a-macabre-pattern-among-orcas-sometimes-they-hunt-each-other/31089/</loc>
    <lastmod>2026-04-20T11:05:36+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T15:00:00-05:00</news:publication_date>
      <news:title><![CDATA[A colleague sent Olga a strange photo taken on a Russian beach, and now scientists believe they have discovered a macabre pattern among orcas: sometimes they hunt each other]]></news:title>
      <news:keywords>Environment</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/biggs-killer-whales-north-pacific-orca-cannibalism-study.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/nasa-observes-argentina-from-the-international-space-station-and-detects-a-gigantic-pink-heart-nearly-10-kilometers-wide-whose-color-does-not-have-as-romantic-an-origin-as-it-seems/31086/</loc>
    <lastmod>2026-04-20T10:50:14+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T12:30:00-05:00</news:publication_date>
      <news:title><![CDATA[NASA observes Argentina from the International Space Station and detects a gigantic pink heart nearly 10 kilometers wide, whose color does not have as romantic an origin as it seems]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/salinas-las-barrancas-pink-heart-lake-argentina-nasa.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/goodbye-the-24-hour-day-from-this-date-onwards-days-earth-will-last-25-hours/24912/</loc>
    <lastmod>2026-04-20T15:27:23+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T10:27:00-05:00</news:publication_date>
      <news:title><![CDATA[Goodbye to the 24-hour day: from this date onwards, days on Earth will last 25 hours]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2025/12/earth-rotation-25-hour-days.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/scientists-extract-a-bacterium-over-5000-years-old-from-the-ice-and-discover-something-disturbing-it-was-already-resistant-to-ten-modern-antibiotics-long-before-our-medicine-existed/31083/</loc>
    <lastmod>2026-04-20T10:36:09+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T10:15:00-05:00</news:publication_date>
      <news:title><![CDATA[Scientists extract a bacterium over 5,000 years old from the ice and discover something disturbing: it was already resistant to ten modern antibiotics long before our medicine existed]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/scarisoara-ice-cave-romania-ancient-bacteria-antibiotic-resistance.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/ian-emmanuel-molecular-biologist-at-age-12-on-his-school-they-told-me-i-had-attention-deficit-disorder/31079/</loc>
    <lastmod>2026-04-20T10:24:42+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T08:45:00-05:00</news:publication_date>
      <news:title><![CDATA[Ian Emmanuel, molecular biologist at age 12, on his school: “They told me I had attention deficit disorder”]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/ian-gonzalez-santos-young-molecular-biologist-mexico.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/a-form-of-life-has-been-detected-in-chernobyl-that-not-only-resists-radiation-but-seems-to-use-it-to-grow/31059/</loc>
    <lastmod>2026-04-19T14:03:36+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T06:30:00-05:00</news:publication_date>
      <news:title><![CDATA[A form of life has been detected in Chernobyl that not only resists radiation, but seems to use it to grow]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/chernobyl-radiation-resistant-fungus-cladosporium-growth-study.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/farewell-to-the-harbor-lights-light-pollution-could-wipe-out-40-of-the-worlds-puffin-population/30661/</loc>
    <lastmod>2026-04-20T09:39:50+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-20T04:39:49-05:00</news:publication_date>
      <news:title><![CDATA[Farewell to the harbor lights: light pollution could wipe out 40% of the world’s puffin population]]></news:title>
      <news:keywords>Environment</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/iceland-puffins-cliff-rescue-city-lights.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/the-new-threat-that-worries-scientists-does-not-come-from-earth-but-from-the-sun-and-could-affect-satellites-gps-and-communications/31052/</loc>
    <lastmod>2026-04-18T19:11:27+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-19T18:30:00-05:00</news:publication_date>
      <news:title><![CDATA[The new threat that worries scientists does not come from Earth, but from the Sun, and could affect satellites, GPS, and communications]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/solar-storm-satellites-space-weather-risk-gps-disruption.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/goodbye-to-the-t-rex-from-jurassic-park-a-new-study-argues-that-it-didnt-run-like-a-giant-reptile-but-with-a-gait-much-more-similar-to-that-of-an-ostrich/31037/</loc>
    <lastmod>2026-04-18T18:12:03+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-19T17:00:00-05:00</news:publication_date>
      <news:title><![CDATA[Goodbye to the T. rex from “Jurassic Park”: a new study argues that it didn’t run like a giant reptile, but with a gait much more similar to that of an ostrich]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/t-rex-ostrich-like-gait-toe-walking-dinosaur-study.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/what-appeared-to-be-a-simple-union-of-plates-in-california-hides-a-much-more-chaotic-system-and-these-small-earthquakes-have-just-exposed-it/31030/</loc>
    <lastmod>2026-04-18T17:08:21+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-19T15:00:00-05:00</news:publication_date>
      <news:title><![CDATA[What appeared to be a simple union of plates in California hides a much more chaotic system, and these small earthquakes have just exposed it]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/mendocino-triple-junction-california-hidden-faults-earthquakes.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/the-hubble-space-telescope-is-tracking-the-four-icy-fragments-of-comet-c-2025-k1-atlas-as-they-travel-through-space-while-a-puzzling-48-hour-delay-in-the-increase-in-brightness-is-forcing-theorists-at/30084/</loc>
    <lastmod>2026-04-19T19:08:28+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-19T14:08:27-05:00</news:publication_date>
      <news:title><![CDATA[The Hubble Space Telescope is tracking the four icy fragments of Comet C/2025 K1 (ATLAS) as they travel through space, while a puzzling 48-hour delay in the increase in brightness is forcing theorists at Auburn University to rethink all their hypotheses about the timeline of its disintegration]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/hubble-comet-c-k1-atlas-breaking-apart.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/the-oldest-reptile-skin-prints-ever-seen-have-been-discovered-in-germany-and-what-is-most-surprising-is-that-they-are-almost-300-million-years-old/31025/</loc>
    <lastmod>2026-04-18T16:32:58+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-19T12:30:00-05:00</news:publication_date>
      <news:title><![CDATA[The oldest reptile skin prints ever seen have been discovered in Germany, and what is most surprising is that they are almost 300 million years old]]></news:title>
      <news:keywords>Science</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/oldest-reptile-skin-fossil-germany-permian-impression.jpg</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://www.ecoticias.com/en/the-thousands-of-tons-of-banana-pseudostems-left-rotting-after-each-harvest-are-now-being-transformed-into-tissue-paper-and-packaging-materials-while-a-simple-process-using-sodium-hydroxide-at-230/31049/</loc>
    <lastmod>2026-04-19T16:21:54+00:00</lastmod>
    <news:news>
      <news:publication>
        <news:name>ECOticias.com</news:name>
        <news:language>en</news:language>
      </news:publication>
      <news:publication_date>2026-04-19T11:21:53-05:00</news:publication_date>
      <news:title><![CDATA[The thousands of tons of banana pseudostems left rotting after each harvest are now being transformed into tissue paper and packaging materials, while a simple process using sodium hydroxide at 230°F is achieving pulp yields of up to 44 percent in April 2026 trials]]></news:title>
      <news:keywords>Environment</news:keywords>
    </news:news>
    <image:image>
      <image:loc>https://www.ecoticias.com/en/wp-content/uploads/2026/04/banana-pseudostem-tissue-paper-factory-sodium-hydroxide-pulp-44-percent-2026.jpg</image:loc>
    </image:image>
  </url>
</urlset>
