Cómo duermen los animales
by Jane R. McCauley.
- Bogotá, Colombia Editorial Norma c1988.
- 32 p. col. ill.
- Exploremos con la National Geographic. .
Translation of: Ways animals sleep.
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.