Coral constructs a vibrant biodiverse ecosystem, but why do so many species congregate within the reef? Around 25% of all fish in our ocean depend on coral reef ecosystems for survival. Some species, like parrotfish, flock to the reef to feast on algae that compete with coral for room to grow. Others, like bearded fireworms, eat the coral directly, while their predators, like triggerfish, help ensure the worms don’t overgraze the ecosystem. Other small creatures may seek out a home within the complex coral structures that provide protection; and where prey assembles, predators are sure to follow. But reefs are at risk, and as a result, the thousands of species that rely on coral ecosystems for survival are in jeopardy, too. With rising ocean temperatures, massive coral bleaching events become more common around the world. Learn why increasing temperatures threaten these coral species and the countless creatures intertwined with them by visiting the link in our bio. Video by paulni...