Undead

Undead mobs are a group of monster mobs, many of which are hostile, that usually drop either bones or rotten flesh on death.

All undead mobs share the following properties:

The majority of undead mobs catch fire under sunlight, a property not found in any other mobs, and are also able to transfer the fire with their attacks. The notable exceptions to this are the Nether-native undead mobs, which are entirely immune to fire, and the desert-native undead mobs as well as skeleton horses, which are not immune to fire but do not burn in sunlight. The majority of undead mobs are unable to swim and sink in water, with the exceptions of camel husks, zombie horses and the two water-based undead mobs.