The Peljenites are a bipedal reptilian species with small brains and short tempers. The Peljenites are reptilian and humanoid in outward body structure. The Peljenites bulbous head featured a ridge along the centerline of the skull. Individual Peljenite stood approximately 1.2 meters tall. Their legs were short and stocky, and their necks were long and stretched. They possessed small brains, but despite their diminished brain capacity, they were capable of delicate, complex technical tasks. They also had keen eyesight and acute hearing. A Peljenite could live to be 65 or older, provided they left the contaminated ecosystem of the homeworld; life expectancy was halved for those who chose to remain.