Shark Adaptations

These two features of a sharks physiology I find really neat, and I really don’t understand the details with the evolution of such.

For instance these traits.

“The lateral line, together with the ampullae of Lorenzini comprise the electrosensory component of the sharks sensory system. The lateral line allows the shark to orient to particle movement or sound. It consists of structures called neuromasts which are located in canals that lie just below the surface of the skin or the scales. Similar to the ampullae of Lorenzini there are pores that open to the outside and movement caused by prey can be detcted by the neuromasts.”

http://www.marinebiodiversity.ca/shark/english/lateral%20line.htm

The following is a definition of neuromast.

“neuromast

one of a small cluster of sensory cells that are part of the lateral line system of fish and larval amphibians. Neuromasts are found either on the skin surface or in pit organs. They are used to detect the direction of water movement.”

http://zipcodezoo.com/Glossary/neuromast.asp