Here's why:
* Internal Temperature Regulation: Chimpanzees, like humans, maintain a constant internal body temperature regardless of their surroundings. This is achieved through metabolic processes that generate heat.
* Homeothermic: This ability to regulate body temperature internally is called homeothermy.
* Example: If a chimpanzee gets cold, it will shiver to generate heat. If it gets too hot, it will sweat to cool down.
Cold-blooded animals (ectotherms) rely on external sources of heat to regulate their body temperature. Examples include reptiles and amphibians.