Uncategorized

  1. Paleontology

    Wings Aplenty: Dinosaur species had feathered hind limbs

    A team of Chinese paleontologists has discovered fossils of a small, feathered dinosaur that they say had four wings.

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  2. Earth

    Estrogens classified as carcinogens

    The sex hormones known as steroidal estrogens, which are used in hormone-replacement therapies and birth control pills, have joined a government list of known human carcinogens.

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  3. 19170

    Researchers’ conclusions in this article that there is a “need to revisit controversial claims about the health benefits and risks of bed sharing for babies” seem to me to miss the point. The health benefits and risks of any sleeping environment should be of concern.