gq: Frustration with censorship and editorial interference led to a group of Pilote cartoonists to found the adults-only L'Écho des savanes in 1972. Adult-oriented and experimental comics flourished in the 1970s, such as in the experimental science fiction of Mœbius and others in Métal hurlant, even mainstream publishers took to publishing prestige-format adult comics.
Question: Pilote cartoonists were upset with censorship and what? Question: When was L'Écho des savanes begun? Question: Métal hurlant was of what genre? Question: What format did adult comics begin to be published in?