Pumas (Puma concolor), also called cougars or mountain lions, are large wild cats that live on the west coast of Canada, in the western half of the United States, and Florida, and most of Central and South America. Pumas are mainly tanÂcoloured, and can be up to 9 feet long although average length is 6 â€“ 8 feet. They can weigh from 29 kilograms to 90 kilograms. (The males are larger.) Most pumas live 21 years. Although pumas are very large and some are larger than humans, the puma is classified is a small cat. Unlike the big cats in the genus Panthera, the puma cannot roar. Instead, it can growl, hiss, screech, and purr. Since pumas are, in the biological sense, small cats, they are capable of purring continuously. The big cats can only purr while breathing out.