I want to know the answer to the following question:
Besides Camouflage being a reason for having certain hair colors, what other reasons have been discovered?
All the background I'm provided with is that "Camouflage is thought to be a major selection pressure shaping coloration in mammals, although there is also evidence that sexual selection, communication, and physiological processes may influence the evolution of coloration as well.". Is that enough to answer the question?