A stallion, or of he is gelded ( neutered) a gelding
If he is still intact he is called a stallion, if he has been gelded (neutered) than he is known as a gelding.
Baby Horse: FoalYoung Male Horse: ColtYoung Female Horse: FillyAdult Male Horse: Stallion (if intact) or Gelding(if castrated)Adult Female Horse: Mare or Dam (if she has had foals)Note: There are differences (between countries) regarding the age when a colt or filly becomes an adult these range from between 2 to 5 years.
A human adult male is called a man.
An adult male is called a Boomer.
Male carabou are called bulls.
An adult male Zebra is called a stallion.
A male bear is called a boar.
A young girl horse is called a filly, and a young male is called a colt. An adult female is called a mare, and an un-castrated adult male is called a stallion. A castrated adult male is called a gelding.
Adult birds are called cocks (male) and hens (female).
a filly
Female "pen", male "cob".
what is a adult male golden retriever called