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
Of course they are! They have to survive don't they!
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
Horses living in the wild have their own ways to get what they need. Such as they have been observed eating a certain type of clay which rids them of internal parasites. Domestic horses eat differently then their wild cousins. Their teeth aren't worn off like wild horses so they need the help of a vet.
Taking that you mean wild horses...Wild horses survive by following with the herd. They have a great flight instinct and strong long legs that can escape predators. They look towards their lead horse, who tells them where it is safe to eat or drink or stop. Although horses are great survivors, death, sadly, can always result.
Wild horses are not omnivorous; they are strict herbivores. Their diet consists primarily of grasses, herbs, and shrubs. This plant-based diet helps them meet their nutritional needs for energy and essential nutrients.