Mares produce milk for their young and will feed them for several months. It is possible to age a horse fairly accurately up to10 years of age by their teeth. It is more difficult to age adult horses by their teeth. There are over 350 different breeds of horses and ponies. Horses are measured by the width of a human hand - 4 inches or 10 centimeters.
All chickens are descendants of the jungle fowls of Asia.
The rooster is the national bird of France. Chickens have no teeth and instead use a part of their stomach called the gizzard to grind up their food. Potatoes are grown by farmers in all U.S. States, and in about 125 countries. Potato chips are a favorite snack. Americans eat 1.2 billion pounds each year.