"After long-ago mass extinction, global warming hindered species' recovery
by Staff Writers
Charlotte NC (SPX) Nov 08, 2012

"Researchers have discovered why plants and animals had a hard time recovering from the largest mass extinction in Earth's history 250 million years ago. The reason: global warming. Because of environmental consequences of rising temperatures, those species that survived the extinction didn't fully recover for 5 million years."

full article- [link to www.spacedaily.com]

Peace