Forbidden Creatures: Inside the World of Animal Smuggling and Exotic Pets is a 2010 book by Doctor of Philosophy Peter Laufer. It is the second book in his untitled animal trilogy, following The Dangerous World of Butterflies in 2009 and preceding No Animals Were Harmed in 2011. The book explores the lives of those that either own exotic animals or have been captured for illegally smuggling them, with a strong focus on Travis, the chimpanzee who attacked Charla Nash in 2009.