Evolution of human colour vision similar. Tritanopes are missing the short wavelength sensitive opsins and see short wavelength colours in a green hue and dim compared to other colours. They may also see some short wavelength colours as black. Other perception problems include distinguishing yellow from pink or purple colours being perceived as shades of red. Researchers have found that trichromacy has advantages over dichromacy or anomalous trichromacy at further distances. This is believed to occur because visual cues such as shape decrease for colour vision as distance increases for targets of a smaller size. Using tests for spotting fruit pieces in bushes at distances
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