Veiled chameleon

This is a species of chameleon native to the Arabian Peninsula in Yemen and Saudi Arabia. The female is shorter than a male, but it has a thicker body. Both sexes have a casque on the head which grows larger as the chameleon matures, reaching about 5 cm in the largest adults.

Males display for females during courtship, performing acts such as “head rolls” and “chin rubs”. Females change colour when they are receptive to breeding, and males are more likely to court them during this time.