Ages 8-9 Penguin Young Readers, an imprint of Penguin Random House LLC,

"This book has been officially leveled by using the F&P Text Level Gradient leveling system"--Cover.

"Did you know that wild boar originally from Europe have taken over parts of the United States? Or that thousands of Burmese pythons from Southeast Asia slither all around the Everglades in South Florida? These animals, taken from their homes and brought to new areas, might not be the best neighbors, but they make it work!"--