Frogs 2019 Forever Postage Stamps Self-Adhesive Booklet for Everyday Mail

Digital illustrations of four North American frogs grace these stamps: the Pacific tree frog, the northern leopard frog, the American green tree frog, and the squirrel tree frog. Working with a primarily green color palette, the artist captured the essence of each animal with enough important defining features to make each recognizable.

Recognized as “indicator species,” frogs signal a healthy environment when abundant. Scientists attribute their vulnerability to ecosystem health due to their skin-breathing nature and the dual exposure during aquatic and terrestrial life stages.

Frogs play a vital role in pest control by managing insect populations. Moreover, they contribute to scientific research and medical advancements. Dart frogs’ toxins and enzymes from northern leopard frogs, when studied, hold potential to revolutionize treatments for severe diseases.