Growing Old Together

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Science  06 Apr 2001:
Vol. 292, Issue 5514, pp. 41-43
DOI: 10.1126/science.292.5514.41

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Simple evolutionary arguments don't demand that organisms share mechanisms of aging, but new work is strengthening the case that common processes control the life-spans of biology's favorite model systems. Reports on pages 104 and 107 show that a signaling pathway that tunes the worm life-span also operates in flies. A third article, published online today by Science (, reports that a gene related to a member of this pathway likewise influences aging in yeast.