The visual world of animals is highly diverse and often very different from that of humans. This book provides an extensive review of the latest behavioral and

First published in 1935 (this edition in 1946), this short account of the science of embryology was the first book in English to provide a simple outline of the

The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of tr

Scientific experiments using animals have contributed significantly to the improvement of human health. Animal experiments were crucial to the conquest of polio