Zombie villagers are variants of zombies that look similar to villagers. Zombie villagers have a 5% chance to spawn as a group. If a zombie villager happens to kill a regular villager, that
As others posted, an armor piece the zombie picked up (didn't spawn with it naturally) will prevent the zombie from despawning. Important caveat though: if said armor piece is a helmet, and the zombie is exposed to sunlight, the helmet takes continuous damage and will break after a short time, and the zombie will despawn or burn to death right after that happens. Breeding is a game mechanic that allows certain mobs, including villagers and many animals, to produce offspring. Some mobs have similar mechanics that are not classified as breeding. Most animals that can be bred have a food item used to lead and breed it (there are a few special cases, described below). Once an animal notices a player holding its food, it follows the player until either the RuEtp.