Geb is the ancient Egyptian god of the Earth, often depicted as a man lying on the ground with green skin, symbolizing fertility and vegetation. He is the son of Nut, the sky goddess, and Shu, the god of air. Geb is associated with the earth's bounty, including crops and animals, and is considered a vital force in sustaining life. In Egyptian mythology, Geb is also the husband of Nut and the father of several important deities, including Osiris, Isis, Set, and Nephthys. He plays a crucial role in the creation myth, where he and Nut are separated by Shu, allowing life to flourish on Earth.