[Answer] What do rabbits, snakes, and giraffes have in common?

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What do rabbits, snakes, and giraffes have in common?

• They have no vocal cords.:Have you ever heard a snake growl or shout out a mating call? No, and you won't because snakes have no vocal cords. Without vocal cords, vocalizations are not possible. Snakes aren't alone in their silence. Rabbits and giraffes are two mammal species that lack vocal cords. These mammals can make some unique, even frightening, grunting noises when they are startled or stressed. But these are not true vocalizations. Giraffes can make a whistling noise that they use to call to their offspring, but like rabbits and snakes, they can't make true vocalizations because they lack vocal cords. Source: AnimalHow.com

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