By Barbara Kingsolver
By James W. Nybakken
By Helmut F. van Emden (University of Reading)
By Greg Pyers
By Howard Friel, Thomas E. Lovejoy
By Nora Bateson
By Ian Plimer
By Albert L. Smit, A.G. Bengough, Chris Engels, M. Van Noordwijk, S. Pellerin
By Jonathon Porritt
By Cook, David
By Ernest H. Williams (Professor in the Department of Biology, Professor in the Department of Biology, Hamilton College)
By Professor Callum Roberts
By Dana L. Jackson, Laura Jackson, Nina Leopold Bradley
By James H. Brown, Brett R. Riddle, Mark V. Lomolino
By Mary Robinson
By Patricia Whitehouse
By Wilson-Powell, Georgina
By Georg Glaeser, Hannes F. Paulus
By Prof. R E Hester (University of York, UK), Prof. R M Harrison (University of Birmingham
By Denis Frank Owen
By Robert Clark (Emeritus Professor of Zoology, Emeritus Professor of Zoology, University of Newcastle upon Tyne)
By Ruth Valerio
By Thoreau, Henry
By Ron Wilson, Pat Lee
By Mary Low
By Veronica Ray
By Martine Schuwer, P. H. Collin
By Marquita K. Hill (Virginia Polytechnic Institute and State University)
By Hinchliffe, Steve, Blowers, Andrew, Freeland, Joanna R.
By Blowers, Andrew, Hinchliffe, Steve