Earth and Planetary Science
EPS Near-Surface Geochemistry and Geobiology

JAN 2006 - The search for a topographic signature of life

In their paper recently published in Nature (reprint) Bill Dietrich and Taylor Perron investigate the influence of biota on the processes controlling landscape form and evolution. They find that while the signatures of life are present at all scales, there is no single landform that uniquely reflects the presence of life. Listen to the Nature Podcast (segment starts at 16:30).