Os Montros do Minecraft

Passive
Passive mobs will never attack the player.
All require land to spawn on, except for Squid which spawn in water blocks.

Chicken	Cow	Pig	Sheep	Squid

Neutral
Neutral mobs will not attack the player unless provoked. The act of provoking Neutral mobs varies between mobs.

Enderman	Zombie Pigman	Wolf

Hostile
Hostile mobs will attack the player when in range.
Require a light level of 7 or less to spawn with the exception of Ghasts, Silverfish and Slimes.

Cave Spider	Creeper	Ghast	Silverfish	Skeleton	Slime	Spider	Spider Jockey	Zombie

Note: All mobs' hostility levels are based on how they are spawned by default. Spiders may become neutral, but they do not spawn neutral.

Planned, Unused, Removed, and Potential Mobs

Planned
Planned mobs are speculated to be added in a future version of Minecraft.

Blaze	Enderdragon	Fish	Magma Cube	Mooshroom	Pigman	Red Dragon	Snow Golem	Villager

Unused
Unused mobs are mobs found in the source, but are not being used at this time. Through hacking, it is still possible to spawn them.

Giant

Removed
Removed mobs are mobs that have been removed from the game and can only be found in previous versions.

Beast Boy	Black Steve	Human	Rana	Steve