Description About this product:- Mammals are type of animal that breaths air, has a backbone, and grows hair at some point during life. Mammals include wide variety of animals, from cats to humans to whales.... Mammals are type of animal that breaths air, has a backbone, and grows hair at some point during life. Mammals include wide variety of animals, from cats to humans to whales. Mammal Flashcards has a real picture of 15 animals on the front side and name of the particular image on the backside.