Margaret Anderson was born and educated in Scotland and graduated from the University of Edinburgh with honors in biology and genetics. She has worked as a biologist, a statistician, and a writer in England, Canada, and the United States. She is the author of ten novels for young readers, including the award-winning In the Circle of Time and The Ghost Inside the Monitor (both with Knopf). She also writes non-fiction books that reflect her interest in biology and in the environment. Recent titles include Food Chains and Charles Darwin (both Enslow). She is the mother of four grown children and the grandmother of seven youngsters. She lives in Corvallis, Oregon, with her husband, Norman, an entomologist.

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Corliss Karesov, a science writer for more than fourteen years, received her bachelor's training in biology at the University of Minnesota and did graduate coursework in biology and jounalism at UCLA. She started writing about science when she worked as a naturalist for Minnesota State Parks and as a consulting representative for National Audubon Society in California. She has since written for more than 30 medical and scientific books, textbooks, journals, magazines, newspapers, and museums. She has a special love of helping children and adults discover the excitement of science and the natural world.

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Karen Stephenson's interest in biology started as a child, collecting insects with her father. In 1990, she graduated from Reed College with a B.A. in biology. She wants to help children enjoy science and is dedicated to writing quality science materials. Karen enjoys the rugged natural beauty of the Pacific Northwest when she is not writing, she is discovering nature. She enjoys bicycling, camping, hiking, and swimming. She lives with her husband and young daughter in Corvallis, Or.

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Adele Schepige has a B.S. in secondary education (biology and earth science) and an M.S. in Interdisciplinary Studies (biology, geology and education) from Western Oregon State College, Monmouth, OR. She is a doctoral candiate studying elementary school science education at Portland State University. She has been teaching biology, physical/earth science, and science for elementary schools at Western Oregon State College since 1986. Adele is committed to helping children enjoy and learn about science and nature. Adele is the mother of two young budding scientist sons. She and her husband share a strong environmental ethic as demonstrated by their passive solar home which they designed and built themselves near Dallas, Or.

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