Komodo dragons are not particularly vocal animals, but they do produce a few distinct sounds. Most notably, they can hiss and hiss loudly when they feel threatened or agitated. This hissing can be quite startling, as it often resembles the sound of a snake. In addition to hissing, they may also produce growling or grunting noises, especially during mating season or when they are competing for food.
The sounds they make are part of their communication with other Komodo dragons. For instance, females may use these sounds to signal their readiness to mate or to communicate with their young. Overall, while they may not be as vocal as some other reptiles, the sounds a Komodo dragon makes can convey essential messages about their mood and intentions.