This study proposes biosocial reciprocity framework in environmental communication, which suggests the interdependent relationships between mass media, people's attitudes, and the physical environment. Biosocial reciprocity is applied to analyze the mass media's possible roles in giant panda conservation in China. The mass media's image construction of giant pandas is assessed through a content analysis of People's Daily (1995 to 2004); the conservation awareness, activities, and environment changes are assessed by a review of the country's giant panda conservation history and policies. The result suggests active interrelations among the media, Chinese attitudes toward wildlife, and the loss of wild panda population and habitat. The study urges that to positively influence the natural world, much needs to be done to improve the Chinese media's effectiveness in fostering grassroots environmental value and awareness. Biosocial reciprocity provides a practical conceptual framework for this study to sort out media-related linkages between the social and physical world of giant panda conservation.