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  1. Paleontology

    The last ice age wasn’t totally icy

    Radiocarbon dating of fossils taken from caves on islands along Alaska's southeastern coast suggest that at least a portion of the area remained ice-free during the last ice age.

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  2. Paleontology

    Allosaurus as a Jurassic headbanger

    The skull of the carnivorous dinosaur Allosaurus fragilis can resist levels of stress much higher than those expected from chewing, which may provide insight into the animal's method of attacking its prey.

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  3. Paleontology

    Calling all orthodontists. . .

    Researchers have unearthed fossils of a theropod dinosaur whose front teeth grew almost directly forward, which sets it apart from all other related species.

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  4. Quantum Special Issue : PDF Download page

    All files are saved as PDFs.  Please download Adobe’s Acrobat Reader to view these files. Clash of the quantum tıtans (Tom Siegfried)/Zombie cat (Alexandra Witze) (Alexandra Witze)/Quantum weirdnessPDF 888KB Everyday entanglement (Laura Sanders)/A spooky link/75 years of entanglement (Alexandra Witze)/Quantum weirdness in actionPDF 1.18MB

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  5. Chemistry

    King Midas’ Modern Mourners

    Chemistry resurrects—in Philadelphia—an ancient funeral banquet.

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  6. Paleontology

    A Makeover for an Old Friend

    Time and technology revamp a dinosaur classic.

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  7. Animals

    Shielded cells help fish ignore noise

    Fish can sort out the interesting ripples from the background rush of water currents through sensors shielded in canals that run along their flanks.

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  8. Paleontology

    Early Biped Fossil Pops Up in Europe

    A newly described, nearly complete 290-million-year-old fossil of an ancient reptile pushes back the evidence for terrestrial bipedalism by 60 million years.

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  9. Astronomy

    Rendezvous gets more personal with Eros

    Venturing closer to a space rock than any satellite has ever gone before, the Near Earth Asteroid Rendezvous (NEAR)-Shoemaker mission last week took the sharpest images ever recorded of an asteroid.

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  10. Health & Medicine

    Prostate enzyme triggers cancer drug

    A new drug reverses advanced prostate cancer in mice by enlisting the aid of prostate-specific antigen, an enzyme found in most prostate tumors.

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  11. Health & Medicine

    Killing immune cells thwarts arthritis

    Researchers have successfully treated people with rheumatoid arthritis by temporarily wiping out most of their antibody-producing immune cells.

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  12. Physics

    Signs of mass-giving particle get stronger

    The promising search at a collider in Switzerland for the Higgs boson—the crucial and last undetected fundamental particle predicted by the central theory of particle physics—became even more of a cliff-hanger as a new, strong hint of the particle appeared on the eve of the machine's second scheduled demise.

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