A guide to the identification of common rocks and minerals.

Designed to enhance the birding experience and to enrich the popular study of North American birds, the book combines more than 795 of full-color illustrations with authoritative text by 48 expert birders and biologist, This new guide shows how birds live and what they do. Introductory essays outlive the principles if avian evolution, life cycle, body structure, flight dynamics, and more. This is an indispensable source of information on the avian...

"From the most trusted name in birding--beloved by millions, backyard enthusiast and expert alike--comes a completely new and definitive guide to the birds of North America: the most comprehensive, authoritative, and up-to-date work of its kind. Developed by the creators of the bestselling Audubon field guides, this master guide is the result of a collaboration between leading scientists, scholars, taxonomic and field experts, photo editors, and designers....

Text and 156 photographs explore the lives and activities of insects, featuring the most interesting and important insects, etc. Organized by major groups, each with a common ancestry or lifestyle.