The term "rear leg" typically refers to the hind limb of an animal, particularly in quadrupeds like dogs, cats, and horses. These legs are crucial for movement, providing support and propulsion as the animal walks, runs, or jumps. The structure of a rear leg includes bones, muscles, tendons, and ligaments that work together to enable various activities. In many animals, the rear legs are often stronger and more muscular than the front legs, allowing for powerful movements. For instance, in dogs, the rear legs play a significant role in jumping and sprinting. Understanding the anatomy and function of rear legs can help in assessing an animal's health and mobility.