Warm-bloodedness, or endothermy, is a biological trait that allows certain animals to maintain a constant body temperature regardless of the environment. This ability is found in animals like birds and mammals, which can generate heat through metabolic processes. This adaptation helps them remain active in various climates and conditions. Warm-blooded animals have specialized mechanisms, such as insulation from fur or feathers, to retain heat. They can also regulate their temperature through behaviors like seeking shade or basking in the sun. This trait is crucial for survival, enabling them to thrive in diverse habitats.