Photographs and text explore the anatomy and life cycle of trees, examining the different kinds of bark, seeds, and leaves, the commercial processing of trees to make lumber, the creatures that live in trees, and other aspects.

This is a photo essay about the range of plants and animals found in fresh water throughout the year, examining the living conditions and survival mechanisms of creatures dwelling at the edge of the water, on its surface, or under the mud.

Be an eyewitness to what life was really like for a knight in medieval times -- from battles to banquets and from jousting to hunting. See how a knight put on his armor. Find out why knights decorated their shields. Discover deadly weapons known as caltrops.

Presents information about the complexities of the plant kingdom, covering non-flowering as well as flowering plants and revealing their structures, natural history, and importance in human life.--

Photographs and text examine the world of mammals, depicting their development, feeding habits, courtship rituals, protective behavior, and physical adaptation to their various ways of life.

Photographs and text examine different types of shells, including seashells, eggshells, and fossil shells, focusing on such aspects as how shells camouflage themselves and how they may be collected.

Provides an eyewitness account of the war that devastated Europe, from the assassination of an archduke to the killing fields of France. New Look! Relaunched with new jackets and 8 pages of new text! Here is an original and exciting guide to the grim challenge of life or death on the Western Front. Devastating first-hand reports and contemporary photographs of the battles that slaughtered millions, together with a clear account of how nation upon...

"This revised edition surveys key aspects of koalas, describing these tree-climbing marsupials' appearance, behaviors, and habitats. A folk tale explains why koalas do not have tails."--Provided by publisher

With winds that can reach speeds of three hundred miles an hour and funnel clouds that can measure a mile in diameter, tornadoes leave enormous damage in their wake. Now Seymour Simon examines these twisting columns of air and destruction. Simon explains how tornadoes are formed, why and when they are most likely to occur, how scientists classify and track them -- and what to do if one touches down. Full-color photographs show this powerful phenomenon...

Describes rescue vehicles, their parts and their uses. Glossaries explain essential terms, and suggested activities add to the fun. Features large type and vivid color photographs--