Minecraft Dream
Like all mobs, adult polar bears are passive on Peaceful difficulty. When the player is near a cub, the parent polar bear becomes hostile toward the player, although it seldom happens in Easy difficulty. When a cub is attacked, nearby polar bears become hostile toward the attacker. This mob is naturally hostile when in a light level 7 or lower; meaning they are naturally hostile whenever they spawn.
Endermen teleport when coming in contact with rain or water or lava and fire. Endermen can step up one full block without having to jump. The range in which an Enderman can teleport is 24 blocks. An Enderman can teleport onto any solid block, exceptions being blocks directly beneath water or lava. They can also not spawn on half-slabs and in spaces less than 3 blocks vertically.
When a mob is killed you will see tiny green and yellow balls appear and move towards you. When you kill a vex in Minecraft, it will not drop anything. It is one of the few mobs that when killed, does not drop any items.
The creeper is a common hostile mob in the Overworld, gaming infamous for its ability to explode when in close proximity to a player. Creepers spawn naturally on the Overworld on top of solid blocks with light levels of 7 or less with at least 2 blocks of open space.
Many neutral mobs become hostile only when attacked first, but other neutral mobs have other ways of being provoked. Some mobs require that the player needs to "construct" them before being able to spawn.
A blaze fireball will hit for 5 damage on all difficulties and set any entity into fire for 5 seconds, dealing an additional 4 damage over time. If the target is 2 blocks away, it will hit with a melee attack that does 6 damage on normal, once per second. This is not considered fire damage so it will not ignite the target. Though blazes know how to fly, they typically stay low in the air when idle.
Endermen have about a 25% chance to drop 1 ender pearl when killed. The drop is increased by 1 per level of Looting, with a maximum of 4 with Looting III.