A new report supports my notion:
QUOTE: ...Bottjer and many others have published studies suggesting that the end-Permian extinction 250 million years ago happened in essence because "the earth got sick."
The latest research from Bottjer's group suggests a similar slow dying during the extinction 200 million years ago at the boundary of the Triassic and Jurassic eras... UNQUOTE.
Source: http://www.sciencedaily.com/releases/2008/10/081007102904.htm |