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.
Vampire bats made news earlier this week when researchers reported that these bats are able to find blood through a heat-detecting molecule covering nerve endings on their noses. According to ScienceDaily, once an adult vampire bat has found a vein to feed on, it can drink half of its body weight in blood.