A kid-friendly introduction to invasive animal species that explores how they got into new ecosystems and the damage they've caused. It might not seem like a big deal when a non-native animal species finds its way to another environment. But it can be! Invasive species reproduce quickly and often have no natural predators, allowing them to overtake native species, and even destroy the ecosystem of their new home. Here's an intriguing look at 10 of these species from around t