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.
- ISBN10 0690039506
- ISBN13 9780690039504
- Publish Date 1 January 1979
- Publish Status Out of Print
- Out of Print 18 November 2014
- Publish Country US
- Imprint Crowell
- Format Hardcover
- Pages 80
- Language English