There could be two things:
Good luck with your horse :)
Horses are often aggressive towards dogs and can be aggressive to other livestock. Generally, mares with foals will tend to be more protective and can become aggressive if they feel their foal is in danger.
Like most animals, a horse does not have enemies. But instead well have fear of a certain person or other horse. This is usually caused by bad owners/ riders or other horses acting aggressive towards another horse. The horse well respond by acting aggressive back towards the person or animal, in hopes to appear stronger.Horses don't hate, but they do have predators. Most carnivores, such as mountain lions, will attack horses=C. But the horses can sometimes get away:)
A stallion is a male horse that hasn't been castrated which in turn gives it a bigger more muscly look than horses that have been. This also may cause these types of horses to be more aggressive towards other stallions.
Yes. it can be aggressive to other horses
Why animals are aggressive towards each other is usually for dominance and like that is their territory not your territory.
It depends on whether or not the other horses it's with are aggressive. If they are, it may be possible that the horse in question could defend itself. Yes, and it can go the other way too.
Well try tying her to a post out at the stables for about a half hour where no other horses are. That's what I did with mine she did something just like that. It worked.
YES! horses have whats called a Pecking order. Its all about dominance. If one is dominant then he can be aggressive to other horses below his status. You must be the dominant horse in your horses mind, just remember that. But steer clear from aggressive horses interacting, they could bolt and hit you at any moment yes
yes
Yes, betta fish are known to be aggressive towards other fish, especially males towards other males. It is important to keep betta fish in separate tanks to prevent fighting and injury.
Koalas are not aggressive. Males may be territorial, especially during mating season, but they are not aggressive towards any other species.
Otters do not typically exhibit aggressive mating behavior towards other animals. They are known for their playful and social nature, and mating behavior among otters is usually non-aggressive.