Endangered Species at World Wildlife Fund. At WWF, we are the leader in wildlife conservation and preservation of animal habitats around the world. Join World Wildlife Fund and support our conservation efforts.

The Rhino Resource Center is committed to assisting research and conservation of the rhinoceros worldwide by collecting all publications and maintaining archives.

Animal pictures and facts for all lovers of animals: Explains everything about animals/mammals including classification and facts

Because we only have the one planet Earth... WWF believes that, together, we must save endangered species, conserve natural environments and live sustainable lives.

Biology, ecology, habitat, and status of rare, threatened and endangered species of mammals and information on their native countries: biodiversity, ecosystems, population, and land use

ARKive - The ultimate multimedia guide to the world's endangered species - www.arkive.org

The ThinkQuest Library provides innovative learning resources for students of all ages on a wide range of educational topics. Featuring over 8,000 websites created by students for students, the ThinkQuest Library is visited by over 30 million web learners each year.