South Carolina's Crayfish Are a Critical Aquatic Critter. Why Are They Dying Off?
Crayfish are an unsung hero of South Carolina's waters - the critters help clean polluted waterways and occupy a critical spot on the region's food chain. Believed to have first crawled into existence around 200 million years ago, many now are quietly going extinct.
"They've been scuttling along our river bottoms for millions of years," said Will Harlan, the Southeast director at the nonprofit Center for Biological Diversity. "To lose them in a century or less is especially heartbreaking..."
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