Which term describes an adult male horse or pony that can reproduce?

• A. Stallion
• B. Gelding
• C. Colt
• D. Mare

Answer: (A)

In horse terminology, an adult male horse that can reproduce is called a stallion. This term identifies an intact, non-castrated male and his breeding capability. A gelding is a male horse that has been castrated, so he cannot reproduce. A colt is a young male horse, usually under four years old, not yet mature enough for breeding. A mare is an adult female horse. So the term describing an adult male capable of reproduction is stallion because it specifically denotes an intact, breeding-capable male, while the other terms refer to non-reproductive males, young males, or females.