Before Darwin, before Audubon, before Gilbert White, there was Merian. An artist turned naturalist, known for her botanical illustrations, Maria Sybilla Merian was born in Germany just sixteen years after Galileo proclaimed that the earth orbited the sun. But at the age of fifty she sailed from Europe to the New World on a solo scientific expedition to study insect metamorphosis - an unheard-of journey for any naturalist at that time, much less an unaccompanied woman. When she returned she produced a book that secured her reputation, only to have it savaged in the nineteenth century by...