Flexi Says: Dolphins have adapted from land-dwelling creatures to a life of swimming and reproducing in the water. Every dolphin has a blowhole, a beak, two eyes, two ears, two flippers, a dorsal fin, two flukes, and a median notch. The auditory cortex of the brain is highly developed for hearing. Blood vessels, nerves, and connective tissues are found in the dermis, which is a layer of skin. The outer skin is not waterproof but consists of a soft coating on a hard, fatty inner skin.
