A time for sleep
how the animals rest
Edición de la obra How Animals Sleep
| Autor | Millicent E. Selsam |
|---|---|
| Editorial | World's Work |
| Fecha de publicación | 1963 |
| Idioma | inglés |
| Páginas | 58 |
| Serie | Simple science books |
| Número de Cutter | S468t |
Tells and shows how many animals sleep, whether standing up or lying down, in groups or individually, and for long or short periods of time.