The biggest threats that California's lakes have ever faced are no larger than a small thumbnail. Tiny quagga and zebra mussels are an invasive species that represent an environmental nuclear bomb for California's reservoirs and waterways. The mussels...
</img>
</img>
</img>
</img>
</img>
http://feeds.sfgate.com/~r/sfgate/rss/feed...491/article.cgi
http://feeds.sfgate.com/~r/sfgate/rss/feed...491/article.cgi
