Contact: Steve Koppes
University of Chicago
Caption: This illustration depicts the food web for ecological groups in the late Cretaceous Period as reported in a new paper published in the Proceedings of the National Academy of Sciences. Each ecological group includes a set of species that share the same set of potential predators and prey. Silhouettes show iconic members of each group. Arrows show who eats whom.
Credit: Courtesy of Jonathan Mitchell, Peter Roopnarine and Kenneth Angielczyk
Usage Restrictions: News organizations may use this image in connection with reports about the research of Jonathan Mitchell and his associates.
Related news release: Mass extinction study provides lessons for modern world