Zombie
The Zombie is a hostile mob that attacks in swarms as of the 1.5 Update. Before 1.5, they attacked individualy. These are not too bad on their own, but lethal in swarms. Zombies are Undead mobs, and catch fire in direct sunlight.
Zombies attack Villagers and have a chance to turn them into Zombie Villagers. (0% chance in Peaceful and Easy, 50% chance in Normal and 100% chsnce in Hard) The Zombie Villager can also spawn outside villages. 5% of all Zombies spawned are Zombie Villagers. Zombie Villagers can be turned back into Villagers by being hit with a Splash Potion of Healing then right clicked with a Golden Apple. The transformation can take a while, so keep the Zombie Villager out of direct sunlight and away from other villagers.
Zombies can also pick up items and equip armour. These items can be retrieved by killing the Zombie. Zombies can also pick up better items and ditch lower quality ones e.g. If a Zombie has a Wooden Sword and finds a Stone Sword, it will ditch the Wooden Sword and pick up the Stone one. The same applies to Armour.
Mob Drops:
0-2 Rotten Flesh
0-1 Potato (Uncommonly)
0-1 Carrot (Uncommonly)
0-1 Iron Ingot (Rarely)
0-1 Iron Sword (Rarely)
0-1 Iron Shovel (Rarely)
0-1 Iron Helmet (Rarely)
Whatever equiped
Experience Orbs
Zombies attack Villagers and have a chance to turn them into Zombie Villagers. (0% chance in Peaceful and Easy, 50% chance in Normal and 100% chsnce in Hard) The Zombie Villager can also spawn outside villages. 5% of all Zombies spawned are Zombie Villagers. Zombie Villagers can be turned back into Villagers by being hit with a Splash Potion of Healing then right clicked with a Golden Apple. The transformation can take a while, so keep the Zombie Villager out of direct sunlight and away from other villagers.
Zombies can also pick up items and equip armour. These items can be retrieved by killing the Zombie. Zombies can also pick up better items and ditch lower quality ones e.g. If a Zombie has a Wooden Sword and finds a Stone Sword, it will ditch the Wooden Sword and pick up the Stone one. The same applies to Armour.
Mob Drops:
0-2 Rotten Flesh
0-1 Potato (Uncommonly)
0-1 Carrot (Uncommonly)
0-1 Iron Ingot (Rarely)
0-1 Iron Sword (Rarely)
0-1 Iron Shovel (Rarely)
0-1 Iron Helmet (Rarely)
Whatever equiped
Experience Orbs
Images
A Zombie Villager:
A Zombie in Diamond Armour and a Diamond Sword: