Drowned

Drowned is a hostile mob that generates when a zombie drowns.

Spawning
Drowned mobs will naturally spawn in ocean biomes (and variants), and in river biomes. Also, if a zombie drowns, it will turn into a drowned. Some drowned will spawn with tridents and sometimes with fishing rod.

Drops
Drowned drops rotten flesh, sometimes a trident and very rarely gold.

Behavior
Drowned have a melee attack, and if they spawn with a trident, they can also use that as a ranged weapon. Drowned will intentionally stomp on turtle eggs, and attack turtles.