Bullfrog belongs to Rana Rana, Anura, and frog belongs to Rana tigris, Anura. The bullfrog's cry is particularly loud, while the frog's cry is much smaller.

Bullfrog and frog are both famous animals, which are very common in China. They are all amphibians, and their appearance features are similar, but that doesn't mean they are exactly the same. In fact, bullfrog and frog are two different amphibians, and their different categories fundamentally determine that they are different. Specifically, although the purpose is the same, the families and genera are different. In addition, there are certain differences in appearance and origin, which cannot be confused and need to be distinguished.

There are also differences in skin smoothness between bullfrogs and frogs. The skin surface of bullfrog is smooth, but the skin of frog is rough, which can be clearly seen when observing.