Feature

  1. Environment

    Year in review: BPA alternatives aren’t benign

    Evidence is accumulating that at least one popular alternative to bisphenol A can enter the body and trigger developmental and physiological changes.

    By Janet Raloff
  2. Animals

    Year in review: New dates, place proposed for dogs’ beginnings

    This year’s dog research suggested older origins and a new location of domestication for man's best friend.

    By Chris Samoray
  3. Humans

    Year in review: Native Americans are Kennewick kin

    Ancient DNA identified 8,500-year-old Kennewick Man as a Native American relative.

    By Bruce Bower
  4. Genetics

    Year in review: Fluke extinction surprises lab

    A die-off of bacteria in a carefully controlled lab experiment offered an evolutionary lesson this year: Survival depends not only on fitness but also on luck.