Describes the different methods of sleep of a variety of mammals, fish, insects, and birds. Includes such details as postures of sleep, location, duration, and special adaptation to habitat.
- ISBN10 0870444948
- ISBN13 9780870444944
- Publish Date 1 October 1983
- Publish Status Active
- Publish Country US
- Imprint National Geographic Society
- Format Hardcover
- Pages 32
- Language English