• The Reproductive Behavior of the Stickleback

    To reproduce, this tiny fish engages in behaviors not commonly associated with such animals, including luring intruders away and cannibalizing another's eggs

    | April 1, 1993|

  • The Evolution of Virulence

    Human behavior appears to influence whether pathogens evolve into benign or harmful forms. Health policy should therefore include evolutionary considerations

    | April 1, 1993|

  • The aging of the Human Species

    Our species has modified the evolutionary forces that have always limited life expectancy. Policymakers must consequently prepare to meet the needs of a population that will soon be much older

    | April 1, 1993|

  • Modern Humans in the Levant

    Modern Homo sapiens preceded Neanderthals on Mount Carmel and followed a similar pattern of life for 60,000 years. Biology thus cannot explain the cultural revolution that then ensued

    | April 1, 1993|

  • Listening with Two Ears

    Studies of barn owls offer insight into just how the brain combines acoustic signals from two sides of the head into a single spatial perception

    | April 1, 1993|

  • Concrete Solutions

    | April 1, 1993|

  • Cavity Quantum Electrodynamics

    Atoms and photons in small cavities behave completely unlike those in free space. Their quirks illustrate some of the principles of quantum physics and make possible the development of new sensors

    | April 1, 1993|

  • Catalysis on Surfaces

    Scientists can now observe how solids interact with individual molecules to speed reactions. Information about these catalysts is being used to improve everything from materials synthesis to pollution control

    | April 1, 1993|

« March 1993 May 1993 »

Past Issues of Scientific American Magazine

View Full Archive

Email this Article