Esox lucius (Hecht) is a species of ray-finned fishes in the family Esocidae. They are associated with freshwater habitat. Individuals are known to live for 30 years.
Definition: A feature shaped by the dissolution of a soluble layer or layers of bedrock, usually carbonate rock such as limestone or dolomite. These landscapes display distinctive surface features and underground drainages, and in some examples there may be little or no surface drainage.
