• Alaska Wildlife Notebook
• E Nature
• Natural History Notebooks – General Animal Information 
  
• San Diego Zoo’s Animal Bytes

• BugGuide
• The Fascinating World of Butterflies
• Insecta Inspecta World

• Defenders of Wildlife
• Natural History Notebooks: Endangered/Extinct   
  

• Grizzly and Wolf Discovery Center
• Fossil Horse Fossil Museum
• Zoom Mammals

For additional online Science resources, try:

• The Science and Animals resource center.
• The Encyclopedias.
• The Magazines & Newspapers  resource center.