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
What Hurts the Most Credits taken from "Perfect Day" liner notes. What Hurts the Most "What Hurts the Most" is a song written by American songwriter Jeffrey Steele and English songwriter Steve Robson. Initially recorded by country music artist Mark Wills in 2003 on his album "And the Crowd Goes Wild", it was covered by Bellefire a year later. The first version to be released as a single was by pop singer Jo O'Meara in 2005, from the album "Relentless". Later that year, country band Rascal Flatts covered the song as well, releasing it as the first single from the 2006 album "Me and