A limb is a jointed appendage of the body, typically referring to arms and legs in humans and animals. Limbs are essential for movement, allowing for activities such as walking, running, and grasping objects. They consist of bones, muscles, tendons, and ligaments that work together to provide support and mobility. In addition to humans, many animals have limbs adapted to their environments. For example, birds have wings for flying, while frogs have strong hind limbs for jumping. The structure and function of limbs can vary widely across different species, reflecting their unique lifestyles and habitats.