A standard 10-gallon tank is sufficient for a single northern leopard frog. They are often mistaken for the closely related leopard frog. It is also sometimes referred to as the Mexican leopard frog. The Creston area hosts British Columbia's only remaining population of northern leopard frog. In the leopard frog, there are three movements for their sound production. The Atlantic Coast leopard frog is one of several species of leopard frogs. The northern leopard frog produces specific ribonucleases to its oocytes. Commonly seen amphibians include the green frog, leopard frog, carpenter frog, and the Fowler's toad. The species breeds at a similar time of year as many other leopard frog species. The Vegas Valley leopard frog ("Lithobates fisheri") is a species of frog previously declared extinct. The northern leopard frog is a fairly large species of frog reaching about in length. The southern leopard frog ("Lithobates sphenocephalus" or "Rana sphenocephala") is a species of true frog. These include, the plains leopard frog, woodhouse's frog, and the striped chorus frog.