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    Subscribe to evolutionary biology

    evolutionary biology

    NPR
    Shots - Health News
    Colored transmission electron micrograph of a section through an <em>Escherichia coli</em> bacterium. This rod-shaped bacterium moves via its hair-like flagellae (yellow).
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    Biologists Trace Genetic Roots Of Evolution, One Cell At A Time

    Mar 15, 2018
    E.coli bacteria, each cell trapped in a tiny tube, are giving researchers the chance to study the pace and effects of single genetic mutations. Most mutations, the scientists find, aren't harmful.
    NPR
    Shots - Health News
    In 2003, <em>Acanthamoeba polyphaga mimivirus</em>, also known as mimivirus, was the first giant virus to be described. It's larger than many bacteria, and was found in a water sample from a hospital cooling tower in England.
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    In Giant Virus Genes, Hints About Their Mysterious Origin

    Apr 06, 2017
    They're the Godzillas of the virus world, pushing the limit of what is considered alive. Researchers are trying to figure out where they came from. (And no, they aren't known to make people sick.)
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    NPR
    The Two-Way
    An artist's impression of <em>Saccorhytus coronarius, </em>a sea creature that lived 540 million years ago.
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    Scientists Describe Ancient Bag-Like Sea Creatures From China

    Jan 30, 2017
    They were ugly. And, unfortunately, they were not equipped with an anus. But the sand dwellers could be an important part of filling in our own early evolutionary tree.
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    NPR
    Shots - Health News

    Menopause Mystery: Why Do Female Killer Whales Experience The Change Of Life?

    Jan 12, 2017
    Killer whales are one of only three species known to have menopause. Researchers are looking at the conflict and cooperation between older and younger female whales to understand why.
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    NPR
    Shots - Health News
    This is a light micrograph of the microbe that evolutionary biologists say lives just fine without any mitochondria.
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    Look, Ma! No Mitochondria

    May 12, 2016
    Scientists have found the first eukaryotic organism that functions fine without mitochondria, the "powerhouses" that make energy for the cells of yeast, humans and other animals.
    NPR
    Shots - Health News
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    How Sound Shaped The Evolution Of Your Brain

    Sep 10, 2015
    Sound gets into our brains and processed so quickly that it shapes all other perceptions, says neuroscientist Seth Horowitz. "You hear anywhere from 20 to 100 times faster than you see."
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    NPR
    Close Listening: Decoding Nature Through Sound
    Laurel Symes on the hunt for crickets.
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    Good Vibrations Key To Insect Communication

    Aug 27, 2015
    For some insects, sound waves or vibrations are the real social media — high-speed rumbles sent through the air and along leaf stems to help the bugs claim territory, send warnings and find mates.
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    NPR
    The Two-Way
    An illustration of <em>Pappochelys</em>,<em> </em>based on its 240-million-year-old fossilized remains. This ancestor to today's turtle was about 8 inches long.
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    How The Turtle Got Its Shell

    Jun 24, 2015
    The ribs of a 240 million-year-old fossil hold clues to how the first turtle shell evolved. And its skull shape seems closer to that of lizards and snakes than to an ancestor of dinosaurs and birds.
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    NPR
    Science
    The most recent common ancestor of all today's snakes likely lived 120 million years ago. Scientists believe it used needle-like hooked teeth to grab rodent-like creatures that it then swallowed whole.
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    Earth's First Snake Likely Evolved On Land, Not In Water

    May 19, 2015
    Genetic sleuthing and comparisons of recently discovered fossils with living snakes point to a "protosnake" ancestor that likely had tiny hind legs and lived about 120 million years ago.
    NPR
    Shots - Health News

    Men Strive To Give More To Charity When The Fundraiser Is Cute

    Apr 16, 2015
    If you're wondering how to get more people to contribute to your online charity drive, consider a photo of you smiling. Even better if you're an attractive woman. Biology is to blame, researchers say.
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    NPR
    Shots - Health News
    The human version of a DNA sequence called HARE5 (inserted into this mouse embryo) turned on a gene that's important for brain development. (Gene activity is stained blue.) By the end of gestation, the embryo's brain was 12 percent larger than the brain
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    Just A Bit Of DNA Helps Explain Humans' Big Brains

    Feb 19, 2015
    Scientists have found some human DNA that, when added to mice, makes their brains bigger. But as DNA research into human brains goes forward, are there ethical lines we shouldn't cross?
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