You are not using a standards compliant browser. Because of this you may notice minor glitches in the rendering of this page. Please upgrade to a compliant browser for optimal viewing:
Firefox Internet Explorer 7 Safari (Mac and PC)
Bacteria blamed for world's worst extinction Nickel-eating bacteria may have worsened the world's worst mass die-off by producing huge amounts of methane, a new study suggests.
Source: NBCnews Posted on:
Thursday, Dec 06, 2012, 8:24am Views: 130