http://en.wikipedia.org/wiki/Mammal
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.Camouflage is the most predominant mechanism for color variation, as it aids in the concealment of the organisms from predators or from their prey. Coat color can also be for interspecies communication such as warning members of their species about predators, indicate health for reproductive purposes, communication between mother and young, and to intimidate predators.Studies have shown that in some cases, differences in female and male coat color could indicate information nutrition and hormone levels, which are important in the mate selection process.One final mechanism for coat color variation is physiological response purposes, such as temperature regulation in tropical or arctic environments.
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.Camouflage is the most predominant mechanism for color variation, as it aids in the concealment of the organisms from predators or from their prey. Coat color can also be for interspecies communication such as warning members of their species about predators, indicate health for reproductive purposes, communication between mother and young, and to intimidate predators.Studies have shown that in some cases, differences in female and male coat color could indicate information nutrition and hormone levels, which are important in the mate selection process.One final mechanism for coat color variation is physiological response purposes, such as temperature regulation in tropical or arctic environments.
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