Aralak Animus Yagiyu was a Federation scientist and the husband of Aanima Yagiyu. (Dimensional Prophecy of Zohar) He studied neurology, physics, medicine, biology and the myths of the Aztecs at Starfleet Academy. During his time at the Academy, Aralak would be involved in the creation of a student magazine. He would eventually end his involvement with the magazine due to a lack of serious journalism. Like his father and grandfather before him, Aralak was a determinist. Yagiyu and his wife would eventually contract Jiternan Syndrome, which would ultimately lead to their deaths.