The secret clocks time senses of living things
By: Seymour Simon ; illustrated by Jan Brett.
Contributors: Brett, Jan, 1949-
Publisher: Puffin Books
Published: 1981
Place of publication: New York
Language: eng
Number of pages: 74
Subjects: Biological rhythms -- Juvenile literature.; Biological rhythms.
Description: Explains the occurrence of biological clocks, which, for example, tell birds when and where to migrate, plants when to unfurl their leaves, and which affect human beings in various physical and emotional ways.
Notes: Bibliography: p. 69-70.
Includes index.