“This experiment did show that incubation temperature does influence aspects of development in the veiled chameleon other than sex. For instance, increased incubation temperature corresponded with shorter incubation time, suggesting that higher temperatures increase the rate of embryonic development within the egg. However, hatchlings from all temperatures emerged with very similar morphology.”…
http://www.chameleonnews.com/08FebLong.html
http://www.chameleonnews.com/08FebLong.html