Brothers Martin and Chris Kratt mix wildlife documentary, creative animation and humorous dialogue to present a program about all kinds of wild creatures. They are assisted at their research center by nature enthusiast Allison, and a wise-cracking, animated friend named Ttark. Here, the brothers answer some puzzling questions about animils, including "How do reptiles survive in the desert," "How do snakes eat things bigger than their heads," "How do some creatures see in the dark" and "How do animals know what to eat?"