The Leyron are amphibian humanoids. The Leyron were separated into two races: the lanky orange or purple-skinned Otolla race, and the heavier green-skinned Ankura race. However, they all exhibited many of the same physical traits.
Starting life as tadpoles, Leyron developed into tall beings with extremely flexible cartilaginous skeletons (composed of resilient cartilage). Strong leg muscles and fin-like ears (called haillu) aided them in swimming and expressing aggression, friendship, and fear. They had partially retractable eyestalks with nictitating membranes when underwater.
Expressive faces and long bills with flaring nostrils were signatures of Leyron physiology. Lengthy muscular tongues and large blunt teeth allowed them to eat lesser amphibians, while a layer of tough skin on the head allowed for burrowing. A Leyron's arms ended in four digits, and their feet had three stubby toes. Females were smaller with sleeker faces and tended to tie their ears back.