From the Detroit Free Press:

They eat as much as 98% of their weight each day, multiply rapidly and could alter the Great Lakes forever.

No, they aren’t Asian carp. They are the true scourge of the lakes: quagga mussels. Their exploding numbers and rapid spread are leading scientists to use words like “startling,” “dramatic” and “unprecedented.”

“Quaggas are causing the biggest changes we’ve ever seen in Lake Michigan,” said Tom Nalepa, a research scientist at the National Oceanic and Atmospheric Administration’s Great Lakes Environmental Research Laboratory who has studied the lake for more than 30 years. “The numbers are still going up. We are going to see more severe impacts.” Read more.