Skolan av Yellowtail Barracuda (läst flavicauda) i grund lagun - HD Bildbanksvideo

Coral reefs are the one of earths most complex ecosystems, containing over 800 species of corals and one million animal and plant species. Here we see a shallow coral reef consisting mainly of hard corals supporting shoals of Yellowtail Barracuda (Sphyraena flavicauda). These young Barracuda remain in a shallow Lagoon schooling together to hunt fish and avoid predators. This is a typical juvenile behaviour that helps to ensure the survival of the species.