Global Animal Guide Wildlife Encyclopedia
Chestnut brown horse standing in a green meadow at golden hour
Mammal Domesticated

Horse

Equus caballus

Quick answer

The horse is a large domesticated mammal kept for riding, sport, work, and companionship for thousands of years. Horses are powerful herbivores that can stand and run within hours of birth, communicate through body language and ear position, and typically live 25 to 30 years. They were first domesticated on the grasslands of Central Asia.

Horse facts at a glance

Key facts about the Horse
Scientific name Equus caballus
Diet Herbivore
Habitat Domesticated; grasslands and pasture
Lifespan 25–30 years
Weight 380–1,000 kg (840–2,200 lb)
Top speed Up to 88 km/h (55 mph) at a sprint
Conservation status Domesticated
Scientific classification
Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Perissodactyla
Family Equidae
Genus Equus

Where it lives

Domesticated on the grassland steppes of Central Asia; now found worldwide.

Built to run

Horses are prey animals built for speed and endurance. Foals can stand and run within hours of birth, an adaptation for escaping predators on open grassland. Their large eyes give them nearly 350-degree vision, and they sleep both lying down and standing up thanks to a locking mechanism in their legs.

Communication and intelligence

Horses are intelligent, social herd animals that communicate through subtle body language, especially the position of the ears, head, and tail. They form strong bonds, recognize individual people and horses, and can read human emotions, which is part of why they are used in therapy and equine-assisted programs.

Horses and humans

Domesticated on the steppes of Central Asia around 5,500 years ago, horses transformed travel, farming, trade, and warfare. Today they are kept mainly for riding, racing, sport, and companionship, with hundreds of breeds ranging from tiny ponies to massive draft horses.

Care and health

Horses need plenty of forage, fresh water, regular hoof care, and room to move. Their digestive system is designed for grazing little and often, so sudden diet changes can cause serious problems such as colic. Good dental and hoof care are central to a long, healthy life.

Frequently asked questions about the Horse

How long do horses live?

Most horses live 25 to 30 years, and some reach their forties with good care. Ponies often live even longer than full-sized horses.

How fast can a horse run?

A galloping horse averages around 40 to 48 km/h (25 to 30 mph), but quarter horses have been clocked sprinting at up to about 88 km/h (55 mph) over short distances.

Do horses sleep standing up?

Horses can doze standing up thanks to a stay apparatus that locks their legs, but they must lie down to reach deep REM sleep. They only need a few hours of sleep a day, taken in short stretches.

Where were horses first domesticated?

Horses were first domesticated around 5,500 years ago on the grassland steppes of Central Asia, in the region of modern Kazakhstan and southern Russia.

Can horses see color?

Horses can see some color but not the full range humans do. They distinguish blues and yellows well but have trouble telling reds and greens apart, similar to red-green color blindness.