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  1. Genetically Driven: Mutation shows up in binge eaters

    Overweight binge eaters are more likely to harbor a genetic mutation that disrupts brain signals governing satiety than are people of normal weight.

    By Nathan Seppa
  2. Physics

    Muon Manna? Particle shower may spotlight loose nukes

    Radiation from space may help border guards spot loose nukes stowed in shipping containers.

    By Peter Weiss

  3. 19307

    Tyrannosaurus rex ‘s environment may have provided sufficient carrion for the giant to survive as a scavenger, and studies of its ratio of leg-muscle mass to body mass suggest that it wasn’t speedy enough to be an efficient predator. But this may be only how it ended its life.