All material on this site, unless otherwise stated, is copyright © Learning Media Limited 2003. All rights reserved. This means that Learning Media and other people own the work and that you can only use the information for your own private purposes, such as to help research school projects.

Copyright law protects the work of people like authors, photographers, and illustrators. Copyright prevents people from copying someone else’s work and using it for purposes that are not private research or study.

The illustrations are by Donna McKenna copyright © Learning Media Limited 2003. All other material on this page is copyright © Learning Media Limited 2003.

The main picture is a collage of photographs from the image discs "Panoramic Views" copyright © PhotoDisc, Inc., 1998, and "Nature, Wildlife, and the Environment 6" copyright © PhotoDisc, Inc., 1993. All other material on this page is copyright © Learning Media Limited 2003.

The illustrations are by Simon Waterfield. All material on this page is copyright © Learning Media Limited 2003.

The top photograph is copyright © photos.com; the second photograph is by Hans Stuart, courtesy of the U.S. Fish and Wildlife Service; that of the beaver dam is by Luther Goldman, courtesy of the U.S. Fish and Wildlife Service; those of the aspen trees and the beaver in the water are from the image disc "Nature, Wildlife, and the Environment 6" copyright © PhotoDisc, Inc., 1993; the illustration of the beaver lodge is by Martin Bailey copyright © Learning Media Limited 2002; and that of the beaver’s teeth is by Simon Waterfield copyright © Learning Media Limited 2003. All other material on this page is copyright © Learning Media Limited 2003.

The illustrations are by Spike Wademan copyright © Learning Media Limited 2003. All other material on this page is copyright © Learning Media Limited 2003.

The illustrations are copyright © Caroline Campbell 2002. All other material on this page is copyright © Learning Media Limited 2003.

The photographs are by NASA/JPL/Caltech. All other material on this page is copyright © Learning Media Limited 2003.

The first two photographs are by Simon Waterfield copyright © Learning Media Limited 2003; the third photograph is from the image disc "Nature, Wildlife, and the Environment 2" copyright © PhotoDisc, Inc., 1997; and the photograph of the mayor is from the image disc "Good Business" copyright © PhotoDisc, Inc., 2000. All other material on this page is copyright © Learning Media Limited 2003.

The top and bottom (left and right) photographs are from the image disc "Nature, Wildlife, and the Environment 6" copyright © PhotoDisc, Inc., 1993; those of the photographer and the camera are by Simon Waterfield copyright © Learning Media Limited 2003; those of the boat are from the image disc "Environmental Concerns" copyright © PhotoDisc, Inc., 1999. All other material on this page is copyright © Learning Media Limited 2003.

The photograph is from the image disc "Nature, Wildlife, and the Environment 6" copyright © PhotoDisc, Inc., 1993. All other material on this page is copyright © Learning Media Limited 2003.

The photographs are copyright © Ian Trafford 2003. The image of the body and harness is by Iain Campbell copyright © Learning Media Limited 2003. All other material on this page is copyright © Learning Media Limited 2003.

The illustrations are by Simon Waterfield copyright © Learning Media Limited 2003. The photograph is from NASA/JSC. All other material on this page is copyright © Learning Media Limited 2003.

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