Because most people can’t see them, doesn’t mean that they’re not ruthless killers swimming beneath the waters of our Great Lakes…

It’s hard to believe that an invasive species, a prehistoric throwback that’s been around for 340 million years with over 100 hooked teeth and a thirst for blood could nearly destroy the biggest freshwater fishery in North America.

It not only could happen, it did happen. To discover how this “predator in paradise” invaded the Great Lakes and why it’s so deadly to fish, watch this video and share the classroom lesson activity with your teacher.

Your idea of an invasive species will never be the same again!