Sleep and hibernation.
Subtitle: Index.
Edition: [American ed.]
Publisher: Childrens Press
Published: 1969
Place of publication: Chicago
Language: eng
Number of pages: 95
Subjects: Hibernation -- Juvenile literature; Sleep -- Juvenile literature; Hibernation; Animals -- Habits and behavior
Description: Briefly describes the hibernation patterns of a wide variety of animals and discusses the reasons for this phenomenon.