- largest North American frog; highly aquatic with a deep-pitched voice
- The American Bullfrog (Rana catesbeianaHillis, D. M. 2007. Constraints in naming parts of the Tree of Life. Molecular Phylogenetics and Evolution 42:331–338.Hillis, D. M., and T. P. Wilcox. 2005. Phylogeny of the New World True Frogs (Rana). Molecular Phylogenetics and Evolution 34:299–314. ...
- Any of various large frogs of genus Rana, that have a deep croak and are native to North America
- I am bestowed by the ironies of my life.....