The horse belongs to which class?

The horse belongs to the class Mammalia, which is the group of animals known as mammals. Mammals are characterized by features such as having fur or hair, being warm-blooded, and typically giving live birth while nursing their young with milk produced by mammary glands. Horses specifically exhibit all of these characteristics, including possessing a layer of hair, maintaining a constant body temperature, and being viviparous, meaning they bear live young.

The answer indicating the horse belongs to the class Animalia is technically correct since Mammalia is a subset of Animalia. However, Mammalia is the more precise classification for horses, as it directly identifies their specific biological characteristics. Other classes such as Reptilia (reptiles) and Aves (birds) do not apply to horses, as they are warm-blooded mammals, not cold-blooded reptiles or birds. Therefore, while classifying horses under Animalia acknowledges their status as animals, understanding their place within Mammalia provides a clearer insight into their biological classification.