Walking Catfish - Animal Invaders Author:Susan Heinrichs Gray With its ability to walk across land, the Walking Catfish has upset the balance of ecosystems and hurt local economies. This book describes how it does this along with color photos. — Looks at the qualities of walking catfish and examines how they became an invasive species in Florida and other places outside of their native Southeast Asia, how t... more »hey cause problems in their new environments, and the ways that people have attempted to deal with them.« less