Undead creatures are beings that have died but are reanimated, often through supernatural means. Common examples include zombies, skeletons, and vampires. These entities are typically depicted in folklore, literature, and popular culture as having lost their original life force, leading to various characteristics such as a lack of consciousness or a craving for human flesh. The concept of the undead varies across different cultures and mythologies. In many traditions, they are associated with themes of death, fear, and the afterlife. Some stories portray them as malevolent beings, while others depict them as tragic figures, struggling with their lost humanity.