They are instinctively prey animals, and see it as an advantage to stand around a lot in case something happens, either by sight, sound or smell that causes them concern and necessitates them to run away. Also, if a horse is laying down for too long it puts pressure on its internal organs, which will kill it if it doesn't get up or is helped to stand, particularly if the horse is so weak, for some reason that it can't stand by itself.
Horses don't always stand they do lay down to get REM sleep. But for the most part they stay standing because it's harder for them to get up and because they have developed to run from predators and remaining standing is their way of spotting danger and being able to flee in time.
no. it depends on the dogs and the horses.
If you mean the same breed, not always.
No. Horses have always been grazing herbivors. (vegiterians)
Always.
In horses, APHA stands for American Paint Horse Association.
Warmblooded horses aren't always cheap, some of the most expensive horses can be warmbloods.
Like people, horses have many different personalities. This does not always depend on what breed it is. People are always saying how big, draft horses are gentle, yet they can be fiery. Same goes with Quarter horses! :)
Horses are used now, and they always have been! They were used at the bronze age too. Horses are used now, and they always have been! They were used at the bronze age too.
A group of horses, whether they are family or not are always called a herd.
BM stands for Black Market, the place where you can buy bonuses for your horses.
maybe
no they have always ridden horses or something