mass extinctions
April 6, 2011
As Earth enters a period of mass extinction, a study released on Wednesday offers a new reason to preserve biodiversity: it’s an effective, natural pollution scrubber […]
January 4, 2011
Answered by polar bear scientist Scott Schliebe of the U.S. Fish & Wildlife Service. “Although it may seem an obvious solution, the risks outweigh the benefits.” […]
January 4, 2011
Study Shows How Invasive Species Stop New Life An influx of invasive species can stop the dominant natural process of new species formation and trigger mass […]