At 9 years old, Eugenie Clark developed an unexpected passion for sharks after a visit to the Battery Park Aquarium in New York City. At the time, sharks were seen as mindless killing machines, but Eugenie knew better and set out to prove it. Despite many obstacles in her path, Eugenie was able to study the creatures she loved so much. From her many discoveries to the shark-related myths she dispelled, Eugenie's wide scientific contributions led to...

After not being allowed on a research ship, scientist Marie Tharp worked in her small office to map out the ocean floor and, overcoming the skeptics of her scientifc community, discovered a deep rift valley in the ocean floor, which is now acknowledged tobe the largest geograpic feature on the planet.