* The posterior segment of the kidney (called sexual segment) in some male geckos, skinks and iguanids is sexually dimorphic. It swells during the breeding season, contributing to the seminal fluid; its colour may also change dramatically and should not be misinterpreted as pathology. | * The posterior segment of the kidney (called sexual segment) in some male geckos, skinks and iguanids is sexually dimorphic. It swells during the breeding season, contributing to the seminal fluid; its colour may also change dramatically and should not be misinterpreted as pathology. |