Why do some plants blossom only during the day? How do certain birds know when and where to migrate? Why are some people early birds and others night owls? In this easy-to-read volume, Seymour Simon... This description may be from another edition of this product.
Author: Simon, Seymour. Title: The secret clocks : time senses of living things / Seymour Simon ; illustrated by Jan Brett. Edition: 1st ed. Publisher: New York : Viking Press, 1979. Edition Date: 1979 Language: English Notes: Includes index. Summary: 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. Physical Details: 74 p. : ill. ; 24 cm. Other Authors: Brett, Jan, 1949- Subjects: Biological rhythms--Juvenile literature. Biological rhythms.
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