American Samoa is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of the independent state of Samoa. The total land area is 199 square kilometers. American Samoa is the southernmost territory of the United States and one of two U.S. territories south of the Equator, along with the uninhabited Jarvis Island. Tuna products are the main exports, and the main trading partner is the rest of the United States.
Notable terrestrial species include the Pacific tree boa and the Samoa flying fox, which has a three-foot wingspread. Two snake species can be found in American Samoa: The Brahminy blind snake is found on Tutuila, while the Pacific tree boa occurs on Taʻū. The islands are home to five species of geckos: Pacific slender-toed gecko, Oceanic gecko, Mourning gecko, Stump-toed gecko, and House gecko.: 253
Turtles include the threatened Green sea turtle and the endangered Hawksbill sea turtle. Hawksbill sea turtles tend to nest on Tutuila beaches, while the Green sea turtle is most common on Rose Atoll. Tutuila has the highest number of nesting turtles, consisting of around fifty nesting females per year.
American Samoa is home to one species of amphibian: the Cane toad. Biologists estimate that there are over two million toads on Tutuila.: 252
915 nearshore fish species have been recorded in American Samoa, compared to only 460 nearshore fish species in Hawaii.: 20 With over 950 species of native fish and 250 coral species, American Samoa has the greatest marine biodiversity in the United States.