The PADI Underwater Naturalist Course Look closer to see more on your next dive. Look for symbioses, predator/prey and other relationships between aquatic plant and animal life. Learn not just what fish and animals are, but how they interact with each other and the environment. Jellyfish that have adapted to the undwerwater environment - it no longer needs to stingThe Fun Part Learn about why some creatures behave the way they do and what their role is in the aquatic ecosystem. Scuba diver observing clown fishWhat You Learn The major aquatic life groupings, interactions and factual information that dispels negative myths. The role of aquatic plants, food chains and predator prey relationships Responsible interactions with aquatic life The underwater naturalist’s view of organisms and their roles in the environment You put this information into practice during your two open water dives.