Dorsal fins are the prominent fins located on the back of many aquatic animals, including fish and some marine mammals like dolphins. These fins play a crucial role in stabilizing the animal while swimming, helping to maintain balance and prevent rolling. The shape and size of dorsal fins can vary significantly among species, influencing their swimming style and agility. In addition to stability, dorsal fins can also serve other functions. For example, in some species, they are used for communication or display during mating rituals. The great white shark and orca are well-known examples of animals with distinctive dorsal fins that contribute to their identity and behavior in the ocean.