Colorful Collared Lizard Ranch is putting together a video on Gravid Collared Lizard! This video shows the gravid aka pregnant blush of female collared lizards and leopard lizards caused by a peak in progesterone and other hormones. You can see if from a light pink and orange and progress into a vibrant orange and red. Some females however may lack the atypical blush and get abnormal colors. If you like this video please subscribe to see more videos!