Diamond facts on Instagram: "Instagram depicts a veiled chameleon hatchling rapidly shifting from pale translucency to vibrant green seconds after hatching, demonstrating an innate survival mechanism captured originally by breeder Eli Ralston in 2016. Chameleons achieve such changes via iridophores containing guanine nanocrystals that rearrange like photonic crystals to reflect light dynamically, as detailed in a 2015 Science study, enabling camouflage without relying on pigments alone. the clip