Beetles on stamps
A site about Beetles on stamps listed by family and country.
Butterflies and Animals on stamps
Butterflies and Moths, WWF comprehensive price lists. Updates regularly.
Catstamps Mailing List - Everything on Feline Philately
Yahoo Group for thematic collectors interested in Feline Philately (Cats - domestic and wild)
Federal Duck Stamp Program
Federal Migratory Bird Hunting and Conservation Stamps, commonly known as “Ducks Stamps,†are pictorial stamps produced by the U.S. Postal Service for the U.S. Fish & Wildlife …
Fish stamps
A scientifically indexed site on Fish stamps as part of a larger site on fish. Good reference material
Rock and Fossil Stamps of the United States
Rock and Fossil Stamps of the United States
Sea Turtle Postage Stamps of the World
Dedicated to Sea Turtle Postage Stamps of the World indexed country and species wise.
Sobralia & Stanhopea Orchids on Stamps
A complete listing of all known Stanhopea & Sobralia orchids on stamps, with photos.
South African Birds on Stamps
Stamps featuring Southern African Birds, particularly those birds that appear in "Roberts Birds of Southern Africa".
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