Fox

Foxes are nocturnal passive mobs that spawn commonly in taiga and snowy taiga biomes.

Spawning
Foxes spawn in taiga and snowy taiga biomes and sometimes in taiga villages, in groups of 1–3. When spawned in a snowy biome, foxes are white in color. They spawn more commonly at night time, sleeping in the forests. There is a $1/6$ probability of the fox spawning as a baby.

Items in mouth
These items have an 8.5% chance to be automatically in a fox's mouth when they spawn:

Behavior and appearance
Foxes move quickly, about the same speed as ocelots, and will flee from any nearby players and wolves. They are completely unaffected by sweet berry bushes, taking no damage or speed reduction while moving in them.

Attacking
Foxes attack chickens and rabbits, crouching down for about 2 seconds, then jump into the air 2-3.5 blocks up over fences and walls when necessary. Foxes also naturally attack baby turtles when on land and all fish mobs, except for pufferfish. Trusting foxes attack pufferfish that harm the player.

Red foxes prefer to attack chickens, rabbits, and baby turtles, all of which are on land, over fish; conversely, arctic foxes prefer to attack fish over land-dwelling creatures. Foxes that trust a player will defend them against hostile mobs should the player be harmed.

Foxes can become temporarily stuck in snow. During their "pounce" animation, if a fox collides with a snow layer, they will remain face-down and emit particles and will pick something up, returning to normal shortly after.

Even if attached to a lead, a fox will try to run towards the closest attackable mob, "trusting" or not.

Sleeping
During the day, if the weather is not thunder, foxes attempt to find a space with a sky light level of 14 or less (e.g. any space with a non-transparent block above it); block light has no effect. While the fox is sleeping, it will slowly move its head up and down and will not move. They will wake up if approached by a player or mob. However, foxes will not move or run away if the player approaches while sneaking.

If the sky light at the fox's position becomes 15 (either due to a block above being destroyed or the fox being moved), the fox will immediately wake up.

Foxes can drop items and pick up berries in their sleep.

"Trusting" foxes can fall asleep even if attached to a lead.

Sitting
A fox also randomly sits down every so often, usually during the day if the fox cannot find a “shaded” area to sleep. The fox will only sit down for a moment, then hop back up. "Trusting" foxes will sometimes sit down even when dragged by a lead.

Holding items
If any item is on the ground near a fox, it travels to the item and picks it up, and it will appear in the foxes' mouth. This behavior is not limited to food and animal products, meaning they can pick up any item that the player can pick up. However, they prefer to pick up food items (except cake), and if the item they are currently holding is not food, they will drop it and pick up the food. A fox will eventually eat any food item it picks up (besides cake) and the fox will be affected by any side effects the food item carries, such as poison or teleportation. If there is a stage 3 or 4 sweet berry bush within a 16 block radius of a fox, it will sprint towards it, harvest it, and eat the berries, dropping the item it was holding. If a fox picks up a weapon or an item with enchantments, these items will have an effect on the fox's attack. This is due to the item the fox is holding acting as their main hand. If a fox is holding a totem of undying and takes fatal damage, the totem will be consumed and the fox will be revived.

Night life
During the night, foxes sometimes head to villages, where they can steal crops dropped from villagers. However, villagers tend to pick up their crops too quickly for foxes to pick up. Smaller foxes can occasionally be found hidden around the houses, as they are easy to spot locked in houses and fallen in the wells.

During the night, foxes will also occasionally emit a screeching noise.

Breeding
When sweet berries are used on two foxes, the foxes will breed, producing a baby fox. The baby fox will "trust" players and not run away from them, even after growing up. However, they will follow adult foxes, so the adult running from the player may cause the baby to do the same. Players can breed between a red fox and an arctic fox, and the offspring will be either a red fox or an arctic fox.

Enemies
Wolves are aggressive towards foxes when within 18 blocks of them (though usually foxes can get away because of their speed). Polar bears will also sneak towards foxes and attack them if they are close enough. Baby polar bears, normally passive, will also attempt to attack foxes within 16 blocks.

Drops
Upon death, adult foxes drop 1–2 orbs when killed by a player or tamed wolf.

Like other baby animals, killing a baby fox yields no experience.

Foxes will always drop any items they pick up and are still holding (they won't drop food that they have eaten, for example) and drop items they spawn with naturally with a chance of 8.5%.
 * If a fox is killed while holding a, then the fox will consume the totem and revive itself instead of dropping the totem.

Data values
Foxes have entity data associated with them that contains various properties of the mob.

Trivia

 * Although foxes appear to hold items in their mouth, they are technically holding items in their main hand.
 * Foxes are one of the only mobs that can sleep in Minecraft.
 * The other mobs include cats and villagers. Bats can also rest.
 * Foxes are the only overworld land mob that can jump more than one block high without status effects.
 * The practice of foxes going to villages is based on stories of foxes raiding older towns for food in the real world.
 * In the real world, some species of fox jump high to catch their prey by surprise, an action reflected in their Minecraft counterpart.

Gallery
Liška Fuchs Renard Fox 여우 Lis Raposa Лиса 狐狸