ScienceDaily: You know the old saying: Location, location, location? It turns out that it applies to the Amazon rainforest, too. New work from Carnegie's Greg Asner illustrates a hidden tapestry of chemical variation across the lowland Peruvian Amazon, with plants in different areas producing an array of chemicals that changes across the region's topography. His team's work is published by Nature Geoscience. "Our findings tell us that lowland Amazon forests are far more geographically sorted than we once thought,"...