Moth : a evolution story By Isabel Thomas
A newly-emerged peppered moth blends in with other speckled-winged moths on lichen-covered branches, but over time the moths with black wings increase as trees are blackened by soot from man-made machines.
A newly-emerged peppered moth blends in with other speckled-winged moths on lichen-covered branches, but over time the moths with black wings increase as trees are blackened by soot from man-made machines.