A large, heavily armored predator that flies about the Chozo ruins. Equipped with a gaping maw and single eye with sophisticated infrared vision, the Senjoo is extremely aggressive. While they fly about erratically, Senjoo are very territorial and will attack anything that comes near. The massive horns protrude from the side of their bodies form an impressive crest that is used as much for offense and defense as it is for ornamentation: the larger the horns, the more attractive it is to its mates.