Correct Answer: Whales

Solution : The correct option is - Whales

Whales are warm-blooded, which means they are able to regulate their internal body temperature independent of the external environment. This is in contrast to cold-blooded animals, like reptiles, whose body temperature is determined by the surrounding environment. Warm-blooded animals, also known as endotherms, have the ability to maintain a relatively constant body temperature, allowing them to thrive in a wide range of environments, including both warm and cold waters.