Instead, it is a cell cycle regulator, which means that it controls when cells divide and thus when different coloured scales develop within a butterfly wing. (sciencedaily.com)
These wing patterns are actually made up of tiny coloured scales arranged like tiles on a roof. (sciencedaily.com)
Most maps of anomalies use the same colour scale in successive monthly summaries, apart from the uppermost and lowermost bands depicted in each legend, which are adjusted when necessary to cope with extremes. (climate.copernicus.eu)