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News and Views
Nature 431, 1048 (28 October 2004) | doi:10.1038/4311048a; Published online 27 October 2004
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Evolutionary biology: Mortality and lifespan
Peter A. Abrams
Abstract
How does natural selection affect lifespan? The question has exercised biologists for some years. The latest twist comes from ingenious experiments on tropical fish from different ecological backgrounds.
On page 1095 of this issue, Reznick et al.1 describe how they have investigated one of the main factors that influence the evolution of an organism's lifespan. That factor is the risk of dying that a population faces as a result of environmental conditions (such as, in this case, predation).
- Peter A. Abrams is in the Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada.
Email: abrams@zoo.utoronto.ca
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