In a counter-intuitive finding, new research from North Carolina State University shows that a species of shellfish widely consumed in the Pacific over the past 3,000 years has actually increased in size, despite -- and possibly because of -- increased human activity in the area. "What we've found indicates that human activity does not necessarily mean that there is going to be a negative impact on a species -- even a species that people relied on as a major food source," says Dr. Scott Fitzpatrick, associate professor of sociology and anthropology at NC State and co-author of the study. "The...