Excerpt from Revision of the Mice of the American Genus Peromyscus But the time has-not yet come for a satisfactory revision of the group, to attempt which at least specimens are requisite, collected so as to fully represent the seasonal phases of pelage obtaining at hundreds of more or less widely separated localities. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.

Life is variable and undergoing continual change. Studying life sometimes requires viewing it as a condition of steady state with little or no change, but we should recognize that such a condition is not natural. A more realistic approach is to view life as a system of constant change and to try to understand those changes. The explanations for life, and especially for evolution, lie in the differences and their changes.

Excerpt from Revision of the American Harvest Mice (Genus Reithrodontomys) In 1895 Allen published an extended revision of the genus in which he recognized 15 forms, 8 of which were there first described. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.

Tim Caro explores the many & varied ways in which prey species have evolved defensive characteristics and behaviour to confuse, outperform or outwit their predators, from the camoflaged coat of the giraffe to the extraordinary way in which South American sealions ward off the attacks of killer whales.