The Too Many Spiders Mod for 1.6.2 adds 5 new crazy spiders to the game. These spiders are based off existing mobs and take their powers and looks.
Pig Spiders act a lot like a pig. They are passive and spawn only in the plains biome. You can ride them with a saddle and to control them use carrot on a stick.
Friendly spiders are rare and can be found in any biome at any time of the day or night. They only attack if attacked and can be tamed using a bone like a wolf. Once tamed, they will follow you around if right clicked. They will also help you attack enemies.
Creep Spiders are hostile mobs...