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.
FACT: Sharksâ eyes, which are equipped to distinguish colors, employ a lens up to seven times as powerful as a humanâs, and some shark species can detect a light that is as much as ten times dimmer than the dimmest light the average person can see. MYTH: Most species of sharks are dangerous to people.