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Describes the butterflies of North America and includes scientific names, physical description, related species, life cycle and habitat.

Incredibly comprehensive yet portable enough for your day pack, the definitive field guide to every type of weather system, cloud formation, and atmospheric phe

The most comprehensive field guide available to the flora and fauna of California--a portable, essential companion for visitors and residents alike--from the go

The most comprehensive field guide available to the Mid-Atlantic region of the United States--a portable, essential companion for visitors and residents alike--

Copiously illustrated with maps, line drawings, and full-color photographs, this large format paperback book contains the essential information that backyard na