Excerpt from Protective Resemblance in the InsectaBrie¿y stated, the theory is that the increase in the numbers of young, whilst the total number of adults remains practically stationary, shows that a continual contest takes place for existence, that those individuals who vary in a direction which is best adapted to the struggle for life, are the most likely to survive, and that the hereditary transmission of fav'orable variations, with changing conditions of life, lead to structural modifications and to the evolution of new species.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.