HORSE - MARC KITAEN ART

BLACK HOLE SUN HORSE

The horse has evolved over the past 45 to 55 million years from a small multi-toed creature, Eohippus, into the large, single-toed animal of today. Humans began to domesticate horses around 4000 BC, and their domestication is believed to have been widespread by 3000 BC.

Horses' anatomy enables them to make use of speed to escape predators and they have a well-developed sense of balance and a strong fight-or-flight response. Related to this need to flee from predators in the wild is an unusual trait: horses are able to sleep both standing up and lying down. Female horses, called mares, carry their young for approximately 11 months, and a young horse, called a foal, can stand and run shortly following birth. Most domesticated horses begin training under saddle or in harness between the ages of two and four. They reach full adult development by age five, and have an average lifespan of between 25 and 30 years.

Horse breeds are loosely divided into three categories based on general temperament: spirited "hot bloods" with speed and endurance; "cold bloods", such as draft horses and some ponies, suitable for slow, heavy work; and "warmbloods", developed from crosses between hot bloods and cold bloods, often focusing on creating breeds for specific riding purposes, particularly in Europe. There are more than 300 breeds of horse in the world today, developed for many different uses.

The following terminology is used to describe horses of various ages:
• Colt: A male horse under the age of four. A common terminology error is to call any young horse a "colt", when the term actually only refers to young male horses.

• Filly: A female horse under the age of four.

• Foal: A horse of either sex less than one year old. A nursing foal is sometimes called a suckling and a foal that has been weaned is called a weanling. Most domesticated foals are weaned at five to seven months of age, although foals can be weaned at four months with no adverse physical effects.

• Gelding: A castrated male horse of any age.

• Mare: A female horse four years old and older.

• Stallion: A non-castrated male horse four years old and older. The term "horse" is sometimes used colloquially to refer specifically to a stallion.

• Yearling: A horse of either sex that is between one and two years old.

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