Mob

A mob (short for mobile, mobile entity, or mobile object)[1] is a game entity controlled by its own mob AI. All mobs can be attacked or hurt (from falling, attacked by a player or another mob, falling into the void, hit by an arrow, etc. with the exception of natural creakings), and have some form of voluntary movement. Different types of mobs often have unique AI and loot.

Mobs spawn in various ways. Most mobs spawn naturally, depending on the light level, biome, and their surroundings. For example, most animals are found in bright areas on the surface, while hostile monsters are commonly found in the dark (whether it's a cave, monster room, mansion, or at night). Animals usually spawn upon chunk generation, while hostile monsters spawn and despawn in a certain radius around the player.

Some mobs, including passive and neutral animals, and even hoglins, have the ability to be bred by the player, creating offspring. Villagers cannot be directly bred by the player, instead randomly breeding depending on the time of day and the number of beds, which allows players to manipulate their likelihood of breeding.