LINCOLN, Nebraska, July 17 (TNSres) -- The University of Nebraska Lincoln campus issued the following news: By Deann Gayman, University Communication and Marketing When trying to understand the present, it's helpful to look to history. New research from the University of Nebraska-Lincoln examined the fossil record going back 66 million years and tracked changes to mammalian ecosystems and species diversity on the North American continent. The study, led by Alex Shupinski, who earned her doct  more