Born in Philadelphia, Paul Ehrlich had a typical childhood during which he cultivated an early interest in entomology and zoology by investigating the fields and woods around his home. As he entered his teen years, Ehrlich grew to be an avid reader. He was particularly influenced by ecologist William Vogt's book, Road to Survival (1948), in which the author was the outlined the potential global consequences of imbalance between the growing world population and level of food supplies available. This concept is one Ehrlich has discussed and examined throughout his career. After high school, Ehrlich attended the University of Pennsylvania where he earned his undergraduate degree in zoology in 1953. He received his master's degree from University of Kansas two years later and continued at the university to receive his doctorate in 1957. His degrees...