Rachel Carson was an American marine biologist, author, and conservationist whose book Silent Spring played a pivotal role in the environmental movement. She was born in 1907 and studied zoology, receiving her MA from Johns Hopkins University. Carson worked for the U.S. Fish and Wildlife Service and wrote several books on ocean life and the processes that formed the Earth. Her most famous book, Silent Spring, brought widespread public attention to the environmental dangers of pesticides and helped launch the modern environmental movement. Carson testified in court about the need for new policies to protect human health and the environment before passing away from breast cancer in 1964.