Lake Tahoe's crayfish boom is a warning sign for lakes across the US

Lake Tahoe's crayfish boom is a warning sign for lakes across the US

In some of America's most familiar lakes, invasive crayfish now number in the millions, and their impact reaches far beyond the water's edge. Here's what to know Lake Tahoe offers one of the clearest examples. As Fox Weather reported, the lake's invasive signal crayfish population is estimated to have climbed from roughly 56 million in the 1960s to about 240 million to 280 million today. Tahoe is not alone. Fox Weather, citing WorldAtlas, said i…