This is a list of official U.S. state, federal district, and territory amphibians . State amphibians are designated by tradition or the respective state legislatures. [1]
As of 2023, only 28 states and one territory have a state amphibian.
Federal district or territory | Common name | Scientific name | Image | Year |
---|---|---|---|---|
Puerto Rico | Common coquí | Eleutherodactylus coqui | Unofficial |
Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all tetrapods excluding the amniotes. All extant (living) amphibians belong to the monophyletic subclass Lissamphibia, with three living orders: Anura, Urodela (salamanders), and Gymnophiona (caecilians). Evolved to be mostly semiaquatic, amphibians have adapted to inhabit a wide variety of habitats, with most species living in freshwater, wetland or terrestrial ecosystems. Their life cycle typically starts out as aquatic larvae with gills known as tadpoles, but some species have developed behavioural adaptations to bypass this.
The flags of the U.S. states, territories, and the District of Columbia exhibit a variety of regional influences and local histories, as well as different styles and design principles. Modern U.S. state flags date from the turn of the 20th century, when states considered distinctive symbols for the 1893 World's Columbian Exposition in Chicago, Illinois. Most U.S. state flags were designed and adopted between 1893 and World War I.