An Orca (Killer Whale) surfaces for air during a hunt.  Orcas are the definition of top of the food chain. Hunting the biggest animal in the world 'the Blue Whale' to the most feared 'the Great White Shark' and everything they desire in between.  They are so intelligent they will kill whales and sharks only to surgically remove the most nutrient rich parts including the liver and a whales tongue for consumption. The rest is left for the sharks.... Ironic I know. Their presence is feared by all. Great White sharks have been shown to relocate hundreds of kilometres away after an Orca makes a successful kill on a relative in the area.