It needs food, water, and shelter. Wild horses travel in herds. Most have a chance of out-running a predator. There is also so many horses in one herd, that most horses have a chance of surviving. For zebras, their stripes help them camoflauge them.
It depends on the climate, but generally speaking in the snowy areas, wild ponies (obviously have survived in the past with the habitat), only need their thick winter coat, enough forage to maintain a good weight and nutrition(particularly a recommended winter weight for ponies), unfrozen water and they will also need to have good nutrition - for a good coat, weight, immune system and hooves.
Mustangs
All wild horses are in herds. Horse depend on each other to survive and stay alert in the wild.
When the spanish came to America and brought horses, some of these horses were released into the wild or escaped and they bred and through natural selection only the strongest and hardiest survive into wild horses.
In the winter, wild horses really do not go anywhere. They are naturally able to survive the harshest and coldest conditions.
wild horses are shy animals and need to be approached with caution.
Snakes need water, food and air in order to survive in the wild.
Wild horses are herd animals and need to be around other horses. Wild and tame horses both like and LOVE to be around other horses, but that depends on their social skills.
to survive
Not all horses are born wild. Domestic horses when born are not really wild, they are just young and need education. There is a big difference between a wild horse and a domestic, green horse.
Horses live where humans do, except in Antarctica. Small, hairy Icelandic horses survive on arctic tundra, while Arabian horses are adapted to the desert. Wherever they live, horses both domestic and wild require grass and water.
Basically a similar way a human could. Often times domestic horses have fans in their stables. Wild horses and domestic horses need a lot of water. Sometimes owners will give their horses electrolytes to keep them hydrated. Just like humans horses are able to sweat to help maintain body temperature
They need food and water of course.