There is only one species of domesticated horse, scientific name Equus caballus, but about 400 different breeds.
An adult male horse is called a stallion and an adult female is called a mare. A young male is called a colt and a young female is known as a filly.
Horses are herbivores, grazing mainly on hay, grass and grains.
The first horses were domesticated around 4,000 years to go and put to work servicing humans. Now, many of traditional horse duties have been taken over by machines.
Wild horses are descended from once-domesticated animals. Groups of wild horses are generally made up of one stallion and multiple mares and foals.
The brumby is a free-roaming wild horse found in Australia, with the largest populations located in the Northern Territory and Queensland. Many brumbies are descended from the horses brought to Australia by early European settlers.
Scroll through the videos, photos and articles below to find out more about horses.
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