Here's a more detailed breakdown of their classification:
* Domain: Eukarya (organisms with cells containing a nucleus)
* Kingdom: Animalia (multicellular organisms that obtain nutrition by consuming other organisms)
* Phylum: Chordata (animals with a notochord, a flexible rod that supports the body)
* Class: Mammalia (warm-blooded vertebrates with fur or hair, mammary glands, and give birth to live young)
* Order: Perissodactyla (horses) and Artiodactyla (cows)
* Family: Equidae (horses) and Bovidae (cows)
While they share the same kingdom, class, and domain, they belong to different orders and families due to distinct evolutionary paths and physical characteristics.