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  1. 19183

    This article seems to contain a few errors. Codons are found on the messenger RNA. Therefore, they can’t contain thymine. They must have uracil, instead. The RNA codon AUG (your ATG) is the only codon for methionine. If it is the “start” codon, how is methionine coded? Nicholas L. Reuter University of Cincinnati Cincinnati, Ohio […]

    By Science News
  2. Math

    Catching Flies

    Archerfish and baseball outfielders appear to use different strategies to snag a projectile. Archerfish (Toxotes jaculatrix) are famous for their unusual way of hunting insect prey. Upon spying an insect on a twig or a piece of foliage hanging above the water surface, the fish shoots it down using a strong, accurately aimed jet of […]

    By Ivars Peterson

  3. Chicken Rank: Hen social position shifts egg hormones

    A study of leghorn chickens has linked hormone concentrations in a hen's eggs to her rank in the pecking order.