1 Angina Pectoris: It is described as a pain located at the back of the breast bone which may be sharp or dull. This sensation may radiate or crawl to the hand, arm, left shoulder, or jaw.  Vasculitis: When the small to medium sized arteries are inflamed, head tingling and numbness may result.
Most species of shark eat things like fish, crustaceans, mollusks, plankton, krill, marine mammals and other sharks. Sharks also have a very acute sense of smell that allows them to detect blood in the water from miles away.
Back to Basics, some Shark Facts for beginners (SharkFacts and Discovery.com): 1  Sharks can âhearâ a fish in distress over a mile a way thatâs more than two foot ball fields.  They also have what is called âampullae of Lorenziniâ which sense electricity and allow them to track the heartbeat of the distressed fish.