By Ben Goldfarb
By Richard Karban, Pamela Mikaela Huntzinger
By Celia Deane-Drummond
By Shirley C. Strum
By Partha Dasgupta
By William M. Adams
By Roy Ellen, Katsuyoshi Fukui
By Tony Hare
By Mohamed Suliman
By Brian Child (University of Florida, Gainsville, USA), Helen Suich, Spenceley Anna (University of Johannesburg, South Africa)
By Townsend, John, Anzalotti, Pam, Collins Big Cat
By Knowles, Professor Richard, Wareing, J.
By Creina Bond, Roy Siegfried, Sir Peter Scott, Peter Johnson
By D Barker
By David Quammen
By Les Beletsky
By Joy Tivy, Greg O'Hare
By Tree, Isabella
By Hynes, H.B.N.
By Myers, A.A., Giller, P.
By Wackernagel, Mathis, Rees, WILLIAM
By Southwood, Sir Richard, Henderson, Peter
By Scoones, Ian
By Bell, Martin, Walker, M.J.C.
By Ryn, Sim Van Der, Cowan, Stuart
By Sheail, John
By Sutcliffe, David W.
By Jackson, Professor Peter, Smith, J.
By Krebs, J. R.
By Carson, Rachel, Shackleton