The Hippo does not speak, and only be described to what it does in front of you. It cannot communicate, though it may be affectionate. It may try to eat you, it may even ignore you completely and continues to be underwater. While it acts like a hippopotamus would, the difference is that The Hippo is solitary, immortal and are clean. The Hippo do not defecate everywhere and the air and the water of its compound are actually clean.