Giant Goldfish

Goldfish are cute until they grow into the size of a football. That’s what happens when people release their unwanted pets into a lake. Invasive goldfish populations are growing in lakes around the world and causing major problems. WSB Engineering environmental scientist Jordan Wein has teamed up with Carver County, Minnesota to learn more about the hundreds of thousands of goldfish clogging up lakes in that state. (Segment produced by Sydney Jezik) (City of Burnsville via AP)