Parallel drainage pattern. A parallel drainage system is a pattern of rivers caused by steep slopes with some relief. Because of the steep slopes, the streams are swift and straight, with very few tributaries, and all flow in the same direction.
1 In Creative, the player can use spawn eggs to spawn most mobs. 2  When mobs are spawned this way, all normal spawning requirements, such as light level and block type, are ignored. 3  Any entity can be spawned using the /summon command.
Farming mobs in minecraft can be a great way to collect huge amounts of resources with little effort, besides the effort put into building the farm of course. Most farms rely on the spawning mechanisms of mobs, though other farms use mob spawners found in dungeons and abandoned mineshafts.