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  1. Life

    Sting Operation

    Scientists use bees and wasps to sniff out the illicit and the dangerous.

    By Susan Gaidos
  2. Life

    A ‘foxi’ gene for dog baldness

    A FOXI3 mutation makes some dogs bald.

    By Tina Hesman Saey
  3. Life

    This bite won’t hurt a bit

    A team dissects the physics of a mosquito bite, working to find a way to design gentler needles.

    By Davide Castelvecchi
  4. Paleontology

    Dino domination was in the cards, maybe

    A new study finds that early dinosaurs coexisted with and were outnumbered by a competing species. Dinosaurs eventually reigned supreme anyway, but perhaps not because they were better.