Greetings Bait is a 1943 Oscar-nominated Warner Bros. Merrie Melodies cartoon, directed by Friz Freleng. The short was released on May 15, 1943.
It features a split-screen view of a crab's view of the underwater world in which his independently moving eyes (on eye stalks) see the world completely differently from each other. The worm and the fisherman are caricatures of Jerry Colonna, and the title is a reference to his weekly greeting on Bob Hope's radio show, "Greetings, Gate." The same worm was also featured in the 1941 Warner's cartoon, The Wacky Worm.
— Wikipedia