Endotherm

Real World Example

Imagine trying to keep a cup of coffee warm on a chilly morning without letting it cool down. Just like you might use a cozy or a thermos to maintain the coffee's temperature, an endotherm generates its own heat to keep its internal temperature constant regardless of the outside environment. In this analogy, the coffee represents the internal temperature of the animal, the cozy or thermos is akin to the animal's ability to generate heat internally, and the chilly morning represents the external environment that the animal's body resists to maintain balance.