This book is an atlas of limbs in terrestrial mammals. Diversity is highlighted with comprehensive phylogenetic coverage of front and hind limbs. Ecological diversity is also targeted with different locomotor ecologies (aquatic, terrestrial, arboreal). Standardized views of the limb musculature include external, internal, and isolated elements as well as in connection to the rest of the body, and at different stages of dissection. Illustrations with the origins and insertions of muscles will use standardized color code. A summary/discussion highlighting differences between phylogenetic groups and animals with different locomotor ecologies appears at the end.