In our video we described a tropical underwater ecosystem, specifically focusing on the coral reef species. We first looked at what type of environment this species lived in, explaining the climate and diversity in the area. By highlighting the importance of nutrient cycling in nutrient poor waters, we showed the coral reef and other reef organism's importance to the biome. We then elaborated on some of the threats that face the coral reef species, including both human and animal activities. Finally, we showed that there is hope for the coral reef, demonstrating the species interaction between the shark and the coral, and how the shark actually helps the coral thrive.