Mob conversion

Mob conversion is a game mechanic whereby certain mobs can convert to mobs of a different type, or to a different variant of the same type of mob, under specific circumstances.

In these instances, a mob converts to different mob, with a different identifier. In Java Edition, data is transferred according to § Data transfer.

From	To	Method
Hoglin	Zoglin	Being outside the Nether for too long
Husk	Zombie	Drowning in water
Mooshroom	Cow	Shearing
Pig	Zombified Piglin	Lightning strike
Piglin		Being outside the Nether for too long
Piglin Brute
Skeleton	Stray	Freezing in powder snow
Tadpole	Frog	Aging naturally
Villager	Witch	Lightning strike
	Zombie Villager	Killed by either zombies, zombie villagers, husks, drowned, or zombified piglins[note 1]
Zombie	Drowned	Drowning in water
Zombie Villager	Villager	Fed golden apple while afflicted by Weakness

In these instances, a mob converts to a different variant of the same type of mob. Only one top-level data field is modified.

Mob type	Converts to	Method	Notes
Bogged	A sheared bogged	Shearing
Copper golem	A more oxidized variant	Oxidation
	A less oxidized variant	Scraping with an axe
Creeper	A charged creeper	Lightning strike
Goat	A goat with one fewer horn	Ramming certain blocks (#snaps_goat_horn). See Goat § Goat horns
Iron golem	A more cracked variant	Taking damage
	A less cracked variant	Being healed, including being repaired by a player using iron ingots
Mooshroom	The other variant (red or brown)	Lightning strike
Snow golem	The sheared variant	Shearing	Although canonically a simple change of equipment, this "conversion" is included here because sheared and unsheared snow golems are considered different variants by the game.[note 2]
Sheep	A different color of sheep	Dyeing or an evoker's conversion spell
	A rainbow sheep, or a fixed-color sheep	Naming the sheep "jeb_", or renaming "jeb_" to something else, respectively
	A sheared sheep	Shearing
	A woolly sheep	Eating grass
Shulker	A different-colored shulker	Dyeing‌[Bedrock Edition only]	They can be dyed only in Creative mode.
Villager	A different profession of villager	See Villager § Professions	Not relevant to zombie villagers, as they cannot change professions without first converting to a villager.
Rabbit	A toast rabbit, or a regular rabbit	Naming the rabbit "Toast", or renaming from "Toast" to something else, respectively

A mob which converts to another mob retains the following entity data, provided that the new mob is able to make use of said data:^{[note 1]}

• AbsorptionAmount
• active_effects
• Age
• angry_at
• anger_end_time
• Brain.memories.minecraft:angry_at.ttl^{[needs testing]}
• Brain.memories.minecraft:angry_at.value^{[needs testing]}
• CanBreakDoors
• CanPickUpLoot
• CustomName
• CustomNameVisible
• drop_chances
• fall_distance
• FallFlying
• Fire
• ForcedAge
• HurtByTimestamp
• HurtTime
• Invulnerable
• IsBaby
• Leash
• LeftHanded
• Motion
• NoAI
• NoGravity
• OnGround
• Passengers
• PersistenceRequired
• PortalCooldown
• Position
• RootVehicle
• Rotation
• Silent
• sleeping_pos
• Tags
• Team

Notably, the following fields are not retained:

• attributes
• Brain, except for the sub-fields mentioned above^{[needs testing]}
• Gossips
• Health^{[note 2]}
• Loot tables
• UUID
• VillagerData
• Xp

Additionally, equipment.saddle is not retained when a saddled pig converts to a zombified piglin.^[1]

A related case to mob conversion is where a mob (specifically a slime or magma cube) splits into several mobs upon death. In terms of entity data, this is treated as a conversion except that the following fields are additionally not transferred:

• drop_chances
• equipment
• fall_distance
• FallFlying
• HurtByTimestamp
• HurtTime
• Leash
• Motion
• OnGround
• Passengers
• Position
• Rotation
• sleeping_pos

• Mob type
• Mob variant

v t e Entities
Mobs Passive Allay Armadillo Axolotl Bat Camel Camel Husk Cat Chicken Cod Copper Golem Cow Donkey Frog Glow Squid Happy Ghast Horse Mooshroom Mule Ocelot Parrot Pig Rabbit Salmon Sheep Skeleton Horse Sniffer Snow Golem Squid Strider Tadpole Tropical Fish Turtle Villager Wandering Trader Zombie Horse BE & edu only Agent NPC Neutral Bee Cave Spider Dolphin Drowned Enderman Fox Goat Iron Golem Llama Nautilus Panda Piglin Polar Bear Pufferfish Spider Trader Llama Wolf Zombie Nautilus Zombified Piglin Hostile Blaze Bogged Breeze Creaking Creeper Elder Guardian Endermite Evoker Ghast Guardian Hoglin Husk Magma Cube Parched Phantom Piglin Brute Pillager Ravager Shulker Silverfish Skeleton Slime Stray Vex Vindicator Warden Witch Wither Skeleton Zoglin Zombie Zombie Villager Bosses Ender Dragon Wither Mob types Animal Aquatic Arthropod Illager Monster Undead Other Baby Jockey Camel Husk Chicken Hoglin Ravager Skeleton Horseman Spider Strider Zombie Horseman Zombie Nautilus Mob conversion Mob variants
Other entities Player Alex Ari Efe Kai Makena Noor Steve Sunny Zuri Blocks Falling Blocks Anvil Concrete Powder Dragon Egg Gravel Pointed Dripstone Sand Red Sand Scaffolding Suspicious Gravel Suspicious Sand Primed TNT BE & edu only Falling Blocks Deprecated Anvil Snow Primed Underwater TNT Vehicles Bamboo Raft Boat with Chest Minecart with Chest with Command Block with Hopper with TNT Java Edition only Minecart with Furnace with Monster Spawner Projectiles Fireball Small Dragon Launched Firework Rocket Llama Spit Shot Arrow Tipped Shulker Bullet Thrown Bottle o' Enchanting Thrown Egg Thrown Ender Pearl Thrown Eye of Ender Thrown Snowball Thrown Splash Potion Lingering Potion Thrown Trident Wind Charge Wither Skull Java Edition only Shot Spectral Arrow BE & edu only Thrown Ice Bomb Stationary objects End Crystal Leash Knot Painting Java Edition only Item Frame Glow Miscellaneous Area Effect Cloud Armor Stand Evoker Fangs Experience Orb Fishing Bobber Items Lightning Bolt Ominous Item Spawner JE only Mannequin BE & edu only Balloon Camera Technical objects JE only Display Block Item Text Interaction Marker Editor only Location Pointer Idle Location Pointer Selected Map Marker Ruler Idle
Unimplemented Unused JE only Giant Illusioner Killer Bunny BE & edu only Elder Guardian Ghost Old Villager Old Zombie Villager Mentioned Alpaca Barnacle Crab Firefly Glare Great Hunger Iceologer Meerkat Minecart with Dispenser Moobloom Ostrich Penguin Pigman Rascal Red Dragon Shade Termite Tuff Golem Vulture Wildfire Removed Builder Giant Jockey MD3 Test Mob Mob Monster Shot Purple Arrow Sign Entity
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