National Science Foundation: Is the Earth's Sixth Mass Extinction Almost Here?
Each of these "Big Five" saw three-quarters or more of all animal species go extinct. In results of a study published in this week's issue of journal Nature, researchers report on an assessment of where mammals and other species stand today in terms of possible extinction compared with the past 540 million years.
Photo Credit: Nicolle Rager Fuller
With the steep decline in populations of many animal species, scientists have warned that Earth is on the brink of a mass extinction like those that have occurred just five times during the past 540 million years.
Posted by WILDNEWJERSEY at 3/6/2011 11:00 AM 
Categories: Wildlife
Tags: mass extinctions extinctions animal species climate change endangered species habitat fragmentation invasive species
Categories: Wildlife
Tags: mass extinctions extinctions animal species climate change endangered species habitat fragmentation invasive species
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