News
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HumansForbidden tests: Panel seeks ban on human clones
A national advisory panel has asked Congress to forbid cloning aimed at creating a child but urged the lawmakers to permit other medical experiments with cloned human cells.
By Nathan Seppa -
ChemistryMaking silicon naturally: Chemists glimpse organic substance in plankton
For the first time, researchers have found a compound composed of both carbon and silicon within a living organism.
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Health & MedicineCancer clue: RNA-destroying enzyme may thwart prostate-tumor growth
Scientists have found a mutated gene that predisposes men of some families to prostate cancer.
By John Travis -
Parrots will fluoresce for sex
A budgerigar's head literally glows for its mate, and both males and females of this parrot species prefer to court radiant partners.