Chameleon turquoise, and purple. Chameleon skin has a superficial layer which contains pigments, and under the layer are cells with guanine crystals. Chameleons change colour by changing the space between the guanine crystals, which changes the wavelength of light reflected off the crystals which changes the colour of the skin. Colour change in chameleons has functions in camouflage, but most commonly in social signaling and in reactions to temperature and other conditions. The relative importance of these functions varies with the circumstances, as well as the species. Colour change signals a chameleon's physiological condition and intentions to other chameleons. Chameleons tend
Reptiles (magazine) purchased by I-5 Publishing, LLC. Other magazines previously published by BowTie that are now being published by I-5 include "Cat Fancy", "Dog Fancy" and "Horse Illustrated". In December 2013 the website of "Reptiles" was launched. Reptiles (magazine) Based in Irvine, California, "Reptiles" magazine is a North American magazine dedicated to the reptile and amphibian pet hobby, specializing in the keeping and breeding of these animals. Fancy Publications, later BowTie Inc., launched the magazine in October 1993. After a year of publishing bimonthly, "Reptiles" went monthly in December 1994 due to the more widespread keeping of reptiles and amphibians as pets