"Lithobates catesbeianus" - just as proud as any American. Though their native range is the eastern part of the United States and Canada, they've been introduced to other parts of the world including South America and China. They are often viewed as an invasive species outside their home range. Their name comes from their call, which kind of sounds like a bull groaning or moaning. Despite being North America's biggest frog and notably aggressive when defending their territory, their are a prey item for many animals, including humans. Also, most unfortunately, these are the frogs most commonly dissected in science classes. (These frogs are also a goldmine for 'Murican jokes, but I won't make any today. I hope you guys appreciate my restraint)
Ribbit