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This is an old revision of this page, as edited by BatteryIncluded (talk | contribs) at 18:13, 13 July 2009 (mass extinctions). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Here are some tasks awaiting attention: Article requests : Detection of life; death; historical beliefs about life, including spontaneous generation; fossils; mass extinctions. Other : Citations.