What is a foal?
A foal is a young equine up to one year old. An equine is a horse, donkey, mule, pony, and zebra.
When a female horse is pregnant, she is in foal or is going to foal. When she gives birth, she is foaling.
A male foal is a colt. A female foal is a filly.

Horse (foal)
After the equine is one year old, it is no longer a foal; it is a yearling. This term is mainly used for horses.
Colt and filly are terms used until the horse is three or four years old.
After the equine is older than four years, the male equine is a called a stallion (or a gelding if the male is neutered) and the female equine is called a mare.

Zebra (foal)

Zebra (foal)

Zebra (mare and foal)

Zebra (mare and foal)

Zebra (mare and foal)
Photographer: Martina Nicolls
Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM