Drowned

Drowned are common hostile mobs that spawn in all oceans and rivers, swamps, or when a zombie drowns.

Natural generation
Drowned will naturally spawn at light level of 7 or less in ocean biomes (all variants), and in river and swamp biomes. They spawn at the bottom of the body of water they are in, and walk on the bottom instead of swimming like other mobs.

Drowned have a chance to spawn with either a trident or a fishing rod, and occasionally with a nautilus shell. They also have a small chance of spawning while riding a chicken, even after drowning as a zombie, creating a drowned chicken jockey. As of the 1.13 update, they can not spawn naturally with any armor, unlike its other zombie counterparts.

Conversion
If a zombie is in water (not necessarily underwater) and not in a boat continuously for 30 seconds, it begins the process of converting to a drowned. Once this happens, it will start shaking, a similar effect to when a zombie villager is being cured. At this point the process cannot be stopped, and 15 seconds later the zombie will turn into a drowned. If a zombie is holding or wearing an item when it becomes a drowned, it will drop the item it is holding or wearing, whether it spawned with the item naturally or had picked it up, 100% of the time. Zombie villagers and husks do not transform.

Drops
Drowned drop when they die:
 * 0–2.
 * , and (Java Edition: 2.5% chance each, 3% chance with Looting I, 3.5% chance with Looting II and 4% chance with Looting III. Bedrock Edition: 3.7% chance each, 4% chance with Looting I, 4.3% chance with Looting II and 4.7% chance with Looting III).
 * Any picked-up equipment has 100% chance of dropping and will drop with the same damage level it had when picked up.

Naturally-spawned equipment

 * 15% of drowned will spawn with a
 * 2% of drowned will spawn with a
 * Drowned have an 8.5% chance of dropping their naturally-spawned equipment, and will drop it with a random durability. Each level of Looting will increase the chance 1 percentage point (11.5 % with Looting III).

It is possible for a drowned to drop both its naturally-spawned trident and a second trident as one of its standard drops (Java Edition: 0.2125% chance, 0.285% chance with Looting I, 0.3675% chance with Looting II, and 0.46% chance with Looting III. Bedrock Edition: 0.3145% chance, 0.38% chance with Looting I, 0.4515% chance with Looting II, and 0.5405% chance with Looting III).

Experience
Drowned will drop 5 experience upon death if killed by the player or a tamed wolf (or 12 if it is a baby).

Behavior
Drowned have a melee attack, and if they spawn with a trident, they will use it as a ranged weapon including underwater. In the Bedrock Edition drowned with tridents will use a melee attack if the target is 3 blocks away or less. They will intentionally stomp on turtle eggs, attack baby turtles, and like zombies will chase and attack villagers and iron golems. If on land, drowned will seek out nearby water. They will sometimes step onto land, but will quickly return to the water.

During the day, drowned only swim to attack players that are swimming in the water with them; otherwise, they stay on the floor of the water body they are in, ignoring players that are on land or in a boat. This is because drowned will stay in water to prevent burning in sunlight. However, at night, drowned swim to the surface and will chase players as well as baby turtles, even outside the water, like regular zombies, since they cannot burn at that time. The speed of their swim is equal to that of the player.

If a drowned kills a villager with a thrown trident, the villager has a chance of turning into a zombie villager instead of dying.

Data values
Drowned have entity data associated with them that contain various properties of the mob. Their entity ID is.

Trivia

 * Drowned are the only aquatic mobs that are considered undead.
 * A drowned chicken jockey will float to the surface because the chicken it is riding floats, causing the drowned riding it to burn in sunlight during the day, resulting in a chicken in the middle of the ocean or river where the drowned jockey spawned in.
 * Drowned are immune to damage from Guardians and Elder Guardians' lasers and thorns.