The nature study movement gave a new outlook to the education of young women in the United States. In the later 20th century, opinions started to change about the movement, and it declined. Some male critics saw it as "romantic" or "sentimental". This created a gender issue that was forcibly imposed on the nature-study movement. By the beginning of the 20th century, many young women were attracted to the natural history movement.Tolley, p. 95
