Moonrats are unusual, large rodents that transform under the influence of the moon. As the moon progresses to its full phase, moonrats become stronger and more intelligent, reaching human levels of intellect and power during a full moon. They possess darkvision, low-light vision, and a keen sense of smell. Under moonlight, they can organize, communicate, and create complex plans. They retain their Dexterity bonus to AC even when flat-footed and cannot be flanked due to their exceptional sense of smell​