This colouring enabled them to hide from potential predators on trees with pale-coloured bark, such as birch trees.Before the industrial revolution in the mid-1700s, the peppered moth was most commonly a pale whitish colour with black spots.Natural selection in action: the Peppered moth As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.Therefore their genes are less likely to be passed on to the next generation. Individuals that are poorly adapted to their environment are less likely to survive and reproduce.These individuals are more likely to reproduce and pass their genes on to their children. Individuals with characteristics best suited to their environment are more likely to survive, finding food, avoiding predators and resisting disease. ![]() This variation is because of differences in their genes. Individuals in a species show variation in physical characteristics. ![]()
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