This document discusses cats, including their evolution, different types, habitats, diets, and threats. It describes how cats evolved 30 million years ago from the suborder Felidae. There are two main groups - big cats in the Pantherinae subfamily like tigers, lions, leopards and snow leopards, and smaller wild cats. Big cats prey on large animals while smaller cats eat small mammals and birds. Cats live in various habitats from forests to grasslands to mountains depending on the species, using camouflage, strength and hunting strategies to survive. However, many cats now face threats from habitat loss, poaching, and human-wildlife conflict.