The mother horse, or mare, is pregnant (or “in foal”) for 11 months. Most mares give birth in the spring to a single baby (foal) although twins are not uncommon. Mares produce milk for their young and will feed them for several months. Within 1-2 hours of birth a foal is able to stand up and walk. When foals are born their legs are almost the same length as they are when they are fully grown – their legs are so long they find it difficult to reach down to the grass to eat! Foals can focus their eyes almost as soon as they are born and cut their first teeth within a week. They are fully grown by 3 – 4 years of age.