The Ee, a species of sentient invertebrates originating from the planet Trilos, possessed innate mental abilities. Every single Ee was proficient in a minimum of one form of mental power. These powers were grouped into three distinct types: physical skills, environmental skills, and mental skills. Two categories were mastered by one out of every ten Ee, while a mere one percent demonstrated skill in all three categories. Within each category existed a variety of specialized skills.