Mr. Little Octopus is a very famous dentist in the underwater world. Many small fish and shrimps like to come to see him when they have problems with their teeth. On this day, Mr. Big Shark came to see his teeth, but the big shark because He never brushed his teeth and his mouth smelled so bad that Doctor Octopus had no choice but to brush his teeth first. Click to see more wonderful childrens paintings of the underwater world.