"Unearth a treasure trove of knowledge about the rocks and minerals beneath our feet--from their formation to collecting them. Make identification easy and accurate with this compact visual guide, packed with photographs and details on formation, distinguishing features, and much more. Over 600 high-quality photographs capture the unique characteristics, colors, and attributes of more than 500 rocks and minerals. Each specimen's entry includes annotated...

Explores the physical characteristics, behavior, habitat, and feeding habits of these underwater mammals.

"The clearest and sharpest definition guide to over 500 species of trees from around the world. Packed with more than 1,600 photographs and illustrations with precise annotations to make identification sure and simple. In this fully revised and updated edition, concise and jargo-free text pinpoints the key characteristics of each species and provides quick, accessible information"--

The clearest and sharpest recognition guide to over 500 seashells from around the world. Packed with over 600 crystal-clear photographs with precise annotation to make identification sure and simple. Concise and jargon-free text pinpoints the key characteristics of each species and provides quick, accessible information.