What animal is central to the story of Theseus within Greek mythology?

The central animal in the story of Theseus within Greek mythology is the Minotaur. In the myth, the Minotaur is a monstrous creature that is half-man and half-bull. It resides in the Labyrinth, a complex maze built by Daedalus on the island of Crete. Theseus is famous for volunteering to enter the Labyrinth to confront and kill the Minotaur, thus liberating the young Athenians who were sent as tribute to the creature. This act of bravery is a pivotal moment in Theseus' legend, highlighting his heroism and cunning. The Minotaur symbolizes the challenges and dangers that heroes must face, making it a crucial element of Theseus' narrative and his journey to become a great hero in Greek mythology.