Why do jewel scarab beetles look like 'pure gold'?
In a recent research, UK-based physicists studying the central-American jewel scarab beetles attribute their metallic golden appearance to their unique 'optical signature'. The signature is due to the reflection of both left and right-handed polarised light by the beetle's exoskeleton. Polarisation is the orientation of the reflected light waveâs oscillations governing how an object appears. 