Zombie cows can be found on the east side of New Varrock. They are a source of zombie cowhide and raw undead beef, for crafting and cooking, respectively. They also appear in the final fight against Zemouregal. Here, they will explode if they touch Zemouregal or Arrav, dealing 1500 damage to them, and they instantly destroy any Protection portal they make contact with. They do not count as cows for Slayer assignments.