What is the term used for animals which generate their own heat?

The term for animals that generate their own heat is "endotherms." Endotherms are able to maintain their body temperature through metabolic processes, which allows them to remain active in various environments, regardless of external temperatures. This physiological characteristic is particularly advantageous in maintaining a stable internal environment, facilitating consistent enzyme function and overall biological processes. Mammals and birds are primary examples of endothermic organisms, relying on their ability to generate heat through metabolism to support their activity levels and survive in a range of habitats. In contrast, ectotherms, the alternative term, primarily depend on environmental sources of heat to regulate their body temperature, leading to different adaptive strategies in energy utilization and activity patterns.