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
The Ear, the Eye and the Arm in a fortified mansion to ensure their security. Seeking adventure to earn the Scout Badge, they escape the house with the help of the Mellower, a praise singer employed by their parents. The children then find themselves in the busy streets of Mbare Musika, where they are kidnapped and taken to Dead Man's Vlei, the lair of the She Elephant. There, they have to work in the plastic mines. Their parents enlist the help of the Ear, the Eye, and the Arm, three mutant detectives from a slum named the Cow's Guts. Ear has sensitive hearing; Eye has sensitive vision;