"Describes various mammals in the Northern Hemisphere that are endangered and at risk of becoming extinct. Data Sheet sidebars and maps accompany the text"--Provided by publisher.

Mammals are under threat in many parts of the northern hemisphere. Some face the destruction of their habitats; others are the victims of hunting; and still more have been affected by the demands of an increasing human population. This book examines the pressures faced by a selection of high-profile species

This text focuses on the principles and methods of using growth layers formed in teeth and bones of mammals to make a judgement on essential traits of the animal's life history. In nearly all mammalian species, including man, the age of individuals can be determined from the number of growth

Identification guide to marine mammals and to cetaceans, seals, and sirenians found in fresh water.

This new edition of Marine Mammals of the World describes and illustrates newly discovered and rarely photographed species, making it the most comprehensive and up-to-date identification guide available. This edition continues to meet the research-focused needs of marine biologists and conservation biologists by providing a tremendous influx of new photos,