Origins

  • The Oldest Life on Land
    Fossilized remnants of a microbial mat provide evidence that life existed on land as early as 2.6 to 2.7 billion years ago. The findings suggest that an oxygen atmosphere and a protective ozone layer were in place around Earth by that time.
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  • Eating Kerogen
    A team of researchers discovered that microorganisms in Kentucky's New Albany Shale are eating kerogen.
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  • Cafe Methane
    In recent years, researchers discovered life also thrives in other, much colder, lightless deep-sea ecosystems besides hydrothermal vents.
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  • Genetic Alchemy: Turning Lobsters into Fruit Flies
    Biologists at the University of California, San Diego, now have genetic evidence that explains how such drastic alterations to body plans were able to occur during the early evolution of animals.
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  • Life without Volcanic Heat
    An 18-story undersea vent off the Atlantic, near what has been called the 'Lost City', has recently revealed itself as ripe with exotic microbial life.
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  • Clues to the Last Common Ancestor
    Molecular detectives have traced human ancestry back to the so-called Mitochondrial Eve, the last female common ancestor. More recent research has posited a Y-chromosome Adam, the last male common ancestor.
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  • Living on Fools Gold
    Reseachers study chemolithotrophic bacteria that survive by getting its energy by oxidizing pyrite, also known as "fool's gold".
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  • Bugs From Hell
    Geochemists and microbiologists are delving into the details of extreme biochemistry deep within the Earth, where chemical and metabolic processes go at glacial pace, and life appears to be completely disconnected from the photosynthesis-based biological cycles that dominate surface life.
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  • Uranus and Neptune – and the Origin of Life on Earth
    Constraints on the giant planets and birth aggregates of the solar system.
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  • Living in the Dark
    Over the past several years, scientists have discovered life in the most unusual places. From rocky abodes deep underground, to hot volcanic vents under the seas.
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  • From Lightbulbs to Life
    A one-celled organism that lives in deep-sea volcanic vents has developed an alternative metabolism that uses tungsten - an element popularly used to make lightbulb filaments.
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  • Clues to the Last Common Ancestor
    Molecular detectives have traced human ancestry back to the so-called Mitochondrial Eve, the last female common ancestor. More recent research has posited a Y-chromosome Adam, the last male common ancestor.
    more...
  • Genetic Alchemy: Turning Lobsters into Fruit Flies
    Biologists at the University of California, San Diego, now have genetic evidence that explains how such drastic alterations to body plans were able to occur during the early evolution of animals.
    more...
  • Em um eucarionte, o DNA está localizado no núcleo da célula. Uma molécula de DNA é composta por duas cadeias helicoidais espiraladas, cada uma composta por uma cadeia linear de açúcar e moléculas de fosfato. Crédito: MIT.
    Quando os cientistas começaram a classificar a vida, tudo foi designado como animal ou planta. Mas enquanto novas formas de vida eram descobertas, a classificação original não foi suficiente para organizar a diversidade e complexidade da vida.
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  • Bugs From Hell
    Geochemists and microbiologists are delving into the details of extreme biochemistry deep within the Earth, where chemical and metabolic processes go at glacial pace, and life appears to be completely disconnected from the photosynthesis-based biological cycles that dominate surface life.
    more...