http://newscenter.berkeley.edu News from the University of California, Berkeley Sat, 18 May 2013 20:48:36 +0000 en-US hourly 1 http://wordpress.org/?v=3.5.1 http://newscenter.berkeley.edu/2011/03/02/has-the-sixth-mass-extinction-already-arrived/ http://newscenter.berkeley.edu/2011/03/02/has-the-sixth-mass-extinction-already-arrived/#comments Wed, 02 Mar 2011 18:10:26 +0000 Robert Sanders http://newscenter.berkeley.edu/?p=6518 UC Berkeley biologists and graduate students delved into the fossil record to compare past animal extinctions -- in particular the five “mass extinctions” that occurred within the past 540 million years -- with today’s extinctions. They find that, while the rate of extinctions today is higher than during past mass extinctions, conservation efforts could help us avoid a sixth.]]> http://newscenter.berkeley.edu/2011/03/02/has-the-sixth-mass-extinction-already-arrived/feed/ 0