No, they are herbivores which means they only eat plants. However they may harm animals if they come near them, depending on the attitude of the horse.
I
All horses are herbivores - they eat grass and some other pasture plants. Shetland ponies are used to a very tough climate and can survive on less palatable plants than most other horses, but they are still herbivores.
Animals are the prey of other animals/predators.
prey
No, horses do not prey on other animals. They are plant eaters.
Different animals prey on other animals. In most cases, the carnivores are the ones that will prey on other groups of animals. A good example is a lion preying on an antelope.
prey
Horses are made to amble around all day and run very fast very quickly, they are prey/herd animals. But they are constantly on the move. So, if your horse is in a confined area, like a stall or a paddock, he/she needs to be turned out in a pasture or large arena for at least a half hour a day, the longer, the better.
prey
Zebras are prey. Several other animals eat zebras, but zebras don't eat other animals.
Deer are herbivores; they forage for grasses, leaves, barks, and twigs. They do not prey upon other animals. Other animals prey upon them.
It is both. It preys on some animals and other animals prey on it.