Yes, these frogs show a large amount of differences between individuals in the same location. One way to identify Green frogs is that unlike Bullfrogs, the Green frogs still have dorsal-lateral ridges, and unlike the Leopard frogs, they only extend down a small bit down the side, and end about halfway down the sides. Males will also have large typhanums (ears, also misspelled that probably) and females will have dramatically smaller ones in comparison