Discusses the creatures that depend on our planet's ocean ecosystems, the efforts being made to save endangered species of the oceans from overfishing, contamination, and global warming, and makes suggestions on how to contribute to conservation efforts.
Studies the factors that are putting marine mammals in danger and discusses how scientists, government agencies, and volunteers are trying to track down offenders and prevent marine mammals from becoming extinct.
Provides general information on the history, biology, and behavior of whales, dolphins, and porpoises, discussing their senses, communication abilities, and distribution and migration, and features detailed descriptions of individual cetacean species, grouped in taxonomic families.
Sea Mammals is the book that takes you on a journey from comfortable terrestrial surroundings to the disquietingly alien world of ocean and ice floe--a world where distances, empty landscapes and even some of the living creatures are so immense that they seem unreal in their remoteness.
Includes the scientific and common name, physical characteristics, habits, environment, and life cycle of whales, dolphins, porpoises, sea cows, seals, walrus, sea otters, and polar bears.
