Extinction recovery takes 10 mln years

[Garrison Hilliard <garrison@efn.org>]

Extinction recovery takes 10 mln years

(AP) - For all practical purposes, when a species is gone, it's gone.
Scientists analyzed fossils and calculated it takes about 10 million
years after a plant or animal becomes extinct before anything
resembling it reappears. "When we got that result, I was just
stunned," said James Kirchner, a geologist at the University of
California at Berkeley who conducted the analysis with Duke
University biologist Anne Weil. Kirchner and Weil said the analysis
confirms the fears of many scientists worried about the increasing
loss of plant and animal life. Biologists estimate that up to half of
the known animal and plant species in the world could be wiped out
within a century. See
http://www.infobeat.com/stories/cgi/story.cgi?id=2564837998-704

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