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.
User Info: N3V4N5. I haven't found a single slime so far in my new 1.8 world. I have explored a swamp biome a lot (not during a new moon) and also I have dug out an area of 4 chunks and according to AMIDST, 3 of them are slime chunks. The area I have dug out is at level 33 which is less than 40 so slimes should be spawning. There was a bug in 1.7.4 that mobs wouldn't spawn if the render distance was less than 10 chunks. I only render 6 chunks because I only have a laptop and it gets too hot if I have the graphics/lighting/rendering etc too high.