Loki is a complex figure in Norse mythology, known as the god of mischief and trickery. He is often depicted as a shape-shifter, capable of transforming into various forms, including animals. Loki is the son of the giants Fárbauti and Laufey, and he is associated with both the Aesir and Vanir gods, often causing chaos among them. Despite his cunning nature, Loki plays a crucial role in many myths, sometimes helping the gods and other times leading them into trouble. He is the father of several notable beings, including the serpent Jörmungandr, the wolf Fenrir, and the goddess Hel. Loki's actions ultimately lead to significant events in Norse mythology, including Ragnarök, the end of the world.