The cougar (Puma concolor), also known as the mountain lion, puma, or panther (depending on region), is the largest wild cat in the Americas and has the widest range of any terrestrial mammal in the Western Hemisphere. It has a sleek, muscular body, a tawny or grayish coat, and a long, powerful tail. Cougars are solitary and highly adaptable, thriving in habitats from forests and mountains to deserts and even near urban areas. They primarily hunt deer but will also take smaller prey like rabbits and rodents. Silent and stealthy, cougars are ambush predators and play a crucial role in maintaining ecosystem balance.