Do all animals make noise?

Animals that do not vocalize noises include snails, worms, hermit crabs, sharks and goldfish. Turtles, snakes, lizards and rabbits are considered silent pets because of the rarity of their vocalizations, though they are capable of vocalization. read more

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There are plenty of animals that do not make much sound, worms, snails, some insects, and more. I guess it depends on how much sound you are talking about. If the animal has a heart that circulates blood and you listen carefully enough (with a sophisticated microphone and amplifier), you will hear a sound. read more