See how populations of mice, plant life, and foxes respond to the availability of water in the balance in nature.
Phoenix Learning Group, 2349 Chaffee Dr., St. Louis, MO 63146, Phone: (314)569-0211, Toll-free: 800-221-1274, Fax: (314)569-2834, URL: http://www.phoenixlearninggroup.com
Available on VHS
Running time 9 minutes.
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