History
Biv and Tiv were two scavengers living in the ruins of Titan. They confronted Thanos when he walked into what they claimed was their territory. Due to the villain's weakened state, neither Biv nor Tiv believed his claims of his identity, and proceeded to beat him up and steal his supplies. They were scared off by a flash of Champion's ship, and ran away.[1]
Later, when Thane came looking for his father, he learned from Biv and Tiv that the Mad Titan had left with Nebula, Champion, and Starfox. Thane then beheaded the scavengers before leaving.[2]