A new study published today in Animal Behaviour shows for the first time that brilliant iridescence and gloss found in some animals can have a protective function by working as a form of deceptive warning coloration, and that it is the key feature of iridescence, its changing colors, that is important for this effect.
Click here for original story, Beetle iridescence a deceptive form of warning coloration, study finds
Source: Phys.org