Some people enjoy fishing. Others LOVE fishing. Lots of people like eating North American catfish. But there is more than the frying pan to these fascinating fish. Catfish about in most places where there are ample water and food. Some are relatively small, and yet some are humongous. The reason catfish can grow extremely large is that they never stop growing. The older the fish, the larger it becomes. In this issue, you will learn about how catfish communicate, regulate their body temperature, and how they can position themselves in different thermoclines in the lake or ocean. Finally, we will come to know and appreciate this fantastic boney fish that lives in our freshwater and marine ecosystems.