Exhibits collection of postage stamps on different kinds of bears. Includes image gallery and scientific names.

Features collection of stamps that depicts prehistoric man specifically the Neanderthal.

Displays collection of stamps that features cats. Includes gallery of pictures categorized by country.

Supplies list of stamp collections viewable in images thumbnails with catalog numbers for each item.

Showcases dogs in stamps with gallery pictures of collections categorized by breed and in alphabetical order.

Spreads information about invertebrates through the use of stamps with gallery pictures.

Provides details on duck stamp collection with images, programs, products, and contact information.

Presents list of thematic stamp collectors interested in feline thematics for sale or exchange. Also covers photos, message boards, and member database.

Displays list of different stamps organized by category. Can be viewable both in two languages.

Selection of giant panda stamps with scanned images and descriptions.

Shows collection of horse stamps with different themes. Includes catalog of the items, guest book and related links.

Includes index list of stamps in alphabetical order with item updates.

List of names of national birds illustrated in stamps. With stamp images.

Presents stamps with illustrations of reptiles and amphibians. Stamp listings may be viewed by country or title.

Presents a list of rose stamps, an image gallery, illegal issues involving rose stamp collections, and a list of stamps that are not considered rose stamps although they have "rose" in their names.

Collection of over 1,200 scanned stamps and souvenir sheets. Aims to raise awareness on sea turtle conservation.

Depicting and promoting underwater exploration through stamps issued in different years.

Comprehensive collection of bird stamps issued in different countries. Viewable by country or species lists.