Boys' and Girls' March of Comics #457

In "Mock Flight!", Tweety and Sylvester find themselves stranded on a tiny tropical island, pitted against each other in a bizarre experiment by two scientists observing their natural instincts. With no escape and only the island's dense jungle between them, the classic cat-and-canary dynamic takes a surprising turn in this 1979 adventure. Art by John Costanza, whose distinctive pencils and inks bring every jungle detail and comedic moment to life, makes this a standout issue in the series.