Snails can see, smell, taste, and touch. They see through eyes that are on their top tentacles, they smell and taste through receptors on their lower tentacles. They don't actually have ears, so they can't really hear, but they can feel vibrations with their sense of touch. Their sense of touch also includes pain and things like sensitivity to temperature. This sense of touch enables them to flee from situations that are hurting them and endangering their lives or health.