Wepwawet (also known as Upuaut and Ophois) was originally a war deity. His name means "opener of the ways" and he is often depicted as a wolf standing at the prow of a solar-boat. Some interpret that Wepwawet was seen as a scout, going out to clear routes for the army to proceed forward, and was said to accompany the pharaoh on hunts.
Over time, the connection to war, and thus to death, led to Wepwawet also being seen as one who opened the ways to, and through, Duat, for the spirits of the dead. Through this, and the similarity of the jackal to the wolf, Wepwawet became associated with Anubis, eventually being considered his son.