Rabbits communicate through various ways such as vocalizations, body language, and scent marking. They use different sounds like grunts, purring, and thumping to convey different messages to each other. In addition, rabbits also use body language like ear positioning, tail movement, and body postures to communicate their feelings and intentions. Lastly, rabbits rely on scent marking to communicate with each other by leaving their scent on objects or territory to establish their presence and mark their territory.