What do scientist call warm-blooded and cold -blooded animals?

Scientists classify warm-blooded animals as "endotherms," which can regulate their body temperature internally, maintaining a stable temperature regardless of external conditions. Cold-blooded animals are referred to as "ectotherms," meaning their body temperature is largely determined by the environment. Examples of endotherms include mammals and birds, while reptiles, amphibians, and most fish are considered ectotherms.