Although they are humanoid in appearance, the Lurians have developed multiple hearts, four lungs at the minimum, and two stomachs, which has made them a more resistant species against poisons and other multitudes of toxins. The additional stomach also allows them to store liquids for years at a time. They are about the same height as a human, but have a broader and heavier body. They have gray or tan skin with narrow, elongated heads. They also have wide mouths, puggish noses, and small, deep-set eyes. Most Lurians seem to have hair, except for Morn, who has gone bald. (DS9 episodes: "Through the Looking Glass", "The Way of the Warrior", "Who Mourns for Morn?", "The Sound of Her Voice")