This is Shark. He is a shark. Shark is generally enthusiastic about most things. Shark will one day change the world. The only thing preventing him from doing this now is that he is also rather nervous about most things as well. Shark is your favorite character.

This is Bear. He is a bear. Bear is somewhere between the rank of acquaintance and friend when it comes to him and Shark. Bear does not actually dislike Shark, and that is good enough for Shark. Bear sometimes has his own ideas, but is generally more rational than Shark. Bear is your second favorite character.

This is Bison. He is an asshole. Bison is my favorite character.