Evolution of human colour vision lights, which appear to be clear. Other colour perception issues include having trouble distinguishing yellows from reds and violet, lavender and purple from blue. In other cases, objects that reflect both red and blue light may appear to just be blue to these individuals. Deuteranopes, who are missing medium wavelength sensitive cones, are similar to protanopes in that they cannot distinguish between colours in the green-yellow-red part of the electromagnetic spectrum. However, deuteranopes do not suffer from dimming issues. For example, purple colors are not seen as being opposite to other colours in the spectrum but instead appear to be
Listen to What the Man Said and music are wedded together. Authors Roy Carr and Tony Tyler note about the song that "artful and sensitive production elevate what was originally a piece of inconsequential whimsy into what can only be described as High Pop", also describing the song as "likeable" and "hummable". Author Chris Ingham described the song as "superior pop". The song was also included on the numerous greatest hits compilations, including 1987's "All the Best!" and 2001's "". However, it was not included on the 1978 Wings compilation, "Wings Greatest". Listen to What the Man Said "Listen to What the Man Said" is a