Enter the world of the osedax worm, where mouthless female scavengers liquefy the bones of dead whales with acid-drenched roots -- and where each female's body contains a harem of tiny, sperm-producing males. Robert and Christian discuss the bizarre lives of the osedax worms and invite "Sex in the Sea" author Dr. Marah J. Hardt for a discussion on this and other fascinating modes of deep-water reproduction.