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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

By S. Jay Olshansky, Bruce A. Carnes and Christine K. Cassel

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

By Serge Haroche and Jean-Michel Raimond

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

By Gerard J. FitzGerald

The Evolution of Virulence

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

By Paul W. Ewald

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

By Bernard Vandermeersch and Ofer Bar-Yosef

Departments

  • Spot Marks the X

  • Listening with Two Ears

  • Catalysis on Surfaces

  • Concrete Solutions

  • Advertising Space

  • Book Reviews: Molecules at Work

  • Letters

    Letters to the Editors, April 1993

  • 50, 100 & 150 Years Ago

    50 And 100 Years Ago: Hertz Pioneers the First Phosphorescent Light

  • Profile

    The Nicest Guy in Washington

  • Mathematical Recreation

    The Rise and Fall of the Lunar M-pire

  • Science and the Citizen

    Obstacle Course

  • Easing a Financial Gag

  • An Eternally Self-Reproducing Cosmos?

  • Flat Chemistry

  • Kitty, We Shrunk Your Brain

  • Illuminating Zero

  • Ancient Sleepers

  • Asteroid Hunters

  • Departments

    Frequent Flaps in the Deregulated Skies

  • Scientists in the Movies

  • Technology and Business

    High Technology

  • Virtuous Viruses

  • Light Motif

  • Putting the Brakes on Tankers

  • Global View

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April 1993

See the World from a Different Perspective

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