Males have a black collar around the neck, and yellow chest and throat markings. Females develop orange bars along the underside when about to lay eggs. Collared lizards have small pockets at the base of the tail and folds of skin above the front legs.
In the context of collared lizard behavior, males can be identified by their black collar around the neck and yellow markings on the chest and throat. Females, on the other hand, develop orange stripes along the underside as they approach egg-laying. Furthermore, collared lizards have small pouches at the base of their tail and skin folds above the front legs.