What animal cleans shark teeth?

Why are okapi hunted for skin? What is kept in scrabbard? Why does my dog prefer to sit behind me? What are the five animals that Billy catches in his trap? WHAT IS THE LINK IN CARDIAC CHAIN OF SURVIVAL? What types of flowers do cats hate? Why is my cat moving slowly and not eating? How erosion affect aimals? What is a male of sparrow? Sudden change of attitude? How can I effectively keep my dog's ears up to dry after bathing or swimming? What are living parts of a habitat are called? Is naag mani exist? What is the study of the development of life on earth including plants and animals? Do kittens shed a lot of fur? Is my female platy pregnant? What is the heviest animal ever? What is the name of the disturbance that removes most of the organisms and damages the soil? Which two organism convert nitrogenous wastes into nitrogenous compounds? Are cypress found in saltwater or freshwater?