It spawns specifically in the plains biome. Sorry if you can't find a plain biome. Just create a superflat world that has a stack load of grass
Not yet you can't, an update for horses in Minecraft xbox has not been released yet by Mojang.
There isn't an IP number for the horse egg in the game Minecraft. This is because the eggs are traditionally known for their rareness to spawn in the wild.
Try: 383:99
The only way to spawn herobrine in minecraft is to use mods as you cannot spawn him in vanilla minecraft.
A dungeon in Minecraft can spawn on any level that normal land can spawn on
Wolves will sometimes spawn in forests in Minecraft PE 0.9.0 and above.
No, currently in vanilla Minecraft dinosaurs are not in the game. This means there are no spawn eggs for them.
In creative mode you can spawn a zombie with the egg
You can't spawn in a farm. You make one.
Minecraft originally came out with spawn eggs in a pre-release - 11w49a. The update was for Minecraft 1.1, in case you are looking for an actual Minecraft update release.
Yes, villages spawn in the 1.0.0 release of Minecraft. They were originally added in version 1.8
Horses spawn randomly in grasslands, such as plains. You can find a horse there, although, despite its rareness, there is a small chance you could find a herd. In creative, you can go to the miscellaneous tab and get a horse spawn egg and spawn one right in front of you. To tame horses, right click on them to ride them. The horse will throw you off of it a couple times, but eventually it gets used to you. You'll know you have tamed a horse if you've ridden it enough and it is showing hearts. With your tamed horse, you can put a saddle and horse armor on it to make your horse look stylish.