"The Sharing of Flesh" (also published as "The Dipteroid Phenomenon") is a science fiction novelette by Poul Anderson. Originally published in Galaxy Science Fiction (December 1968), it won a 1968 Hugo Award for Best Novelette and was nominated for a 1969 Nebula Award. The story has appeared in the collections The Night Face & Other Stories (1979), The Dark Between the Stars (1981), Winners (1981), and The Long Night (1983).
After a galactic dark age, humanity sends an expedition to a primitive human planet, where all cultures practice cannibalism as a rite of manhood. When one of the expedition members is brutally killed, his wife embarks on a mission of vengeance.