The most comprehensive field guide available to the fabulous mysteries above--a must-have for any enthusiast's day pack or home library--from the go-to reference source for over 18 million nature lovers. The National Audubon Society Field Guide to the Nig
The entire birding world, from expert ornithologists to backyard enthusiasts, has been waiting for Sibley's work to be made available in a field-usable form. Containing the renowned artist's superbly lucid and comprehensive text, this guide features more
Perfect for mountain climbers and hikers, this valuable reference covers more rocks and minerals in North America than any other available guide. 794 full-color photographs depict all the important rocks, gems, and minerals -- in many variations of color
Introduced in 1977 and completely revised in 1994, these bestselling photographic field guides have become the birding bibles of more than four million enthusiasts. Virtually every bird found in North America is brought to life in a full-color photograph
“Once in a great while, a natural history book changes the way people look at the world. In 1838, John ames Audubon’s Birds of America was one...In 1934, Roger Tory Peterson produced Field Guide to the Birds...Now comes The Sibley Guide to Birds.”Th
From a stop-action photograph of the amazing flying squirrel to Big Horn Sheep perched on a rock face, this guide puts the world of mammals in your hands. Illustrated with more than 300 full-color photographs, each species account includes information on
Introduced in 1977 and completely revised in 1994, these bestselling photographic field guides have become the birding bibles of more than four million enthusiasts. Virtually every bird found in North America is brought to life in a full-color photograph
The bestselling National Audubon Society field guides to North American wildflowers have been brought to a new level of beauty, accuracy, and usefulness. More than 700 new full-color photos, showing every species both in close-up and in its natural settin
Why are some frogs able to freeze solid and still survive? How can secretions from amphibians offer scientists clues for treating human ailments? What allows reptiles and amphibians to regenerate their limbs? Reptiles & Amphibians, an exciting new Exp
Spiders, bugs, moths, butterflies, beetles, bees, flies, dragonflies, grasshoppers, and many other insects are detailed in more than 700 full-color photographs visually arranged by shape and color. Descriptive text includes measurements, diagnostic detail
