P. Martin Duncan is the author of the book "" Science Heroes. Botanists, Zoologists, And Geologists." Charles Darwin, Louis Agassiz, Alfred Russel Wallace, Mary Anning, and a host of other notable scientists are among those whose lives and accomplishments are examined. The book explores their accomplishments, challenges, and effects on the scientific community and society at large. It is an interesting look at the individuals who revolutionized our perception of the natural world and laid the basis for contemporary scientific inquiry.