Divided We Fall: Cooperation among Lions
Although they are the most social of all cats, lions cooperate only when it is in their own best interest
Volume 276, Issue 5
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Features
Managing Human Error in Aviation
Mistakes by flight crews contribute to more than two thirds of aviation accidents. Training to enhance team performance may reduce potentially fatal errors
Integrins and Health
Discovered only recently, these adhesive cell-surface molecules have quickly revealed themselves to be critical to proper functioning of the body and to life itself
The Coming Climate
Meteorological records and computer models permit insights into some of the broad weather patterns of a warmer world
New Chemical Tools to Create Plastics
Small molecular machines called metallocene catalysts have revolutionized the industrial synthesis of valuable plastics
Galaxies in the Young Universe
By comparing distant primeval galaxies with older ones nearby, astronomers hope to determine how galaxies form and evolve