Eugenie Clark ( May 4 , 1922 -- February 25 , 2015 ) , sometimes referred to as The Shark Lady , was an American ichthyologist known for her research on poisonous fish of the tropical seas and on the behavior of sharks .
Eugenie Clark ( May 4 , 1922 -- February 25 , 2015 ) , sometimes called The Shark Lady , was an American ichthyologist . Clark was known for her research on poisonous fish of the tropical seas and on the behavior of sharks .