By Brian Dicks
By C. Kuzemko
By N. Harrison, J. Mikler
By G. Seyfang
By Dan Smith
By E. M. Bridges
By Antoinette Mannion
By Tom L. McKnight, Darrel Hess
By K.D. Hilton
By Mike Acreman
By D.A. Robinson, R.B.G. Williams
By Edward Bryant (University of Wollongong, New South Wales)
By Scoffham, Stephen, Bridge, Colin, Jewson, Terry
By Michael Allaby
By Bishop, Nic, Bishop, Nic, Collins Big Cat, Moon, Cliff
By Charlotte Runcie
By Romola Parish
By Nagle, Garrett
By Bonnett, Alastair
By Strahler, Arthur N., Alan H.
By Richard Girling
By Patrick Barkham, Alastair Fothergill
By Greg, Dr., PhD Skomal
By Paul Gogarty
By Jon Copley
By Pádraig Kenny
By Lyndsie Bourgon
By DK
By Luke Turner
By Roger Deakin