"Cumulative text based on an old folksong alternating with additional scientific information explores the role of prairie dogs, a keystone species in North America's grasslands, and conservation efforts to restore the balance of plants and animals of the Janos, Mexico, prairie dog complex. Backmatter includes timeline, photographs, music, prairie dog facts, glossary, and authors' sources"--

"A cumulative verse, alternating with additional narrative, describes the ecological and social transformation resulting from the work of Dr. Gordon Sato, a Japanese American cell biologist who made saltwater and desert land productive through the planting of mangrove trees in the tiny African country of Eritrea. Includes afterword, photographs, glossary, and author's sources"--Provided by publisher.