Form: 10-K

Annual report pursuant to Section 13 and 15(d)

December 21, 2001

Documents

LIST OF SUBSIDIARIES

Published on December 21, 2001



EXHIBIT 21

LIST OF SUBSIDIARIES

The following table sets forth certain information concerning the principal
subsidiaries of the Company.




State or Other
Name Jurisdiction of Incorporation
---- -----------------------------

All-Glass Aquarium Co., Inc. Wisconsin
Four Paws Products, Ltd. New York
Kaytee Products Incorporated Wisconsin
Norcal Pottery Products, Inc. California
Pennington Seed, Inc. of Delaware Delaware
TFH Publications, Inc. Delaware
Wellmark International California


The names of certain subsidiaries have been omitted because such unnamed
subsidiaries, considered in the aggregate, would not constitute a significant
subsidiary as that term is defined in Regulation S-X.