Uncategorized

  1. Anthropology

    Disinherited Ancestor: Lucy’s kind may occupy evolutionary side branch

    A controversial analysis of a recently discovered jaw from a 3-million-year-old Australopithecus afarensis puts Lucy's species on an evolutionary side branch that eventually died out.

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  2. Health & Medicine

    Agents of Metastasis: Four proteins conspire in breast cancer spread

    Four proteins work together to assist cancer growth and metastasis, and drugs against them inhibit both processes, tests in mice suggest.

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  3. Physics

    Quantum Capture: Photosynthesis tries many paths at once

    The wavelike behavior of energy in chlorophyll might explain how plants are so efficient at using solar energy.

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  4. Female Stem Cells Flourish: Sex difference could affect therapies

    Certain adult stem cells from female mice regenerate better than those from males, indicating that not all stem cells are created equal.