IUCN 2004. 2004 IUCN Red List of Threatened Species. <www.iucnredlist.org>.
• Mammal Species of the World (online edition) - Searchable database of Wilson & Reeder's Mammal Species of the World.
Go to the IUCN links page for many great links to web sites that provide further information on some of the species listed on the IUCN Red List, information about organizations working to conserve species and their habitats, and information on conservation projects being carried out around the world.
Marty Stouffer's Wild America
Bob Steele Photography: the most incredible collection of bird photos.
Polar Bears International web cams.
University of California Museum of Paleontology "The world's biomes" An introduction to the major biomes on Earth.
National Geographic Wild World Biomes Map This is an interactive map so clicking on an area will tell you it's biome.www.animalcopyright.org