The Minotaur (Μινώταυρος in Ancient Greek , meaning The "Bull of Minos" (Mino - King Minos and tauros - bull/cow)) was a creature with the head of a bull on the body of a man. He can't speak and is rather stupid. However, he does have great strength and is easily angered. Like all monsters, the Minotaur can't be fully killed, and it will just keep coming back.
The Minotaur was born of a human, Pasiphaë, and a white bull. Poseidon sent the white bull to King Minos for him to sacrifice in his honor, but King Minos did not sacrifice the bull because he saw that the bull had the most beautiful fur that he has ever seen and let the bull live. However, Poseidon was spying nearby and saw that Minos had left his white bull alive. Thereafter, mad with rage and anger that Minos had not sacrificed the bull, curses Minos and cursed that Pasiphae will fall in love with the bull. Poseidon then leaves for Olympus. She had Daedalus make a fake cow for her to hide inside and lure it.
The result of their union was the Minotaur.
Pasiphaë nursed him in his infancy, but he grew rapidly and became incredibly ferocious. Minos, after getting advice from the Oracle at Delphi, had Daedalus and his son Icarus construct a gigantic maze, the Cretan Labyrinth, to hold the Minotaur. Its location was near Minos' palace in Knossos.
The Minotaur dwelts at the center of the Labyrinth and every three years, seven youths and seven maidens in Athens were taken from their families as sacrifices to him. Theseus, the son of Aegeas, volunteered to slay the Minotaur and was taken to the Labyrinth as a feast for the monster. The Minotaur was eventually killed by Theseus with the help of Ariadne.