Worrying invasive snail found in Lake Michigan

Associated Press: Scientists worry that a rapidly reproducing, tiny invasive snail recently found in Lake Michigan could hurt the lake's ecosystem. The New Zealand mud snail joins a long and growing list of nonnative species moving into the Great Lakes, threatening to disrupt the food chain and change the local environment. Scientists checking Lake Michigan water samples earlier this summer found a population of the New Zealand mud snail, the Illinois Natural History Survey said. They grow to ...