By Tristram D. Wyatt (Senior Research Associate, Department of Zoology, University of Oxford)
By Dominic Couzens, Philip Snow, Tony Disley
By Peter J. Simmons (University of Newcastle upon Tyne), David Young
By Jonathan Balcombe
By Richard Dawkins (Emeritus Fellow of New College, Oxford.)
By Carl Safina
By D.R. Kershaw
By Sarah Gibson
By Mike Toms
By Hannah Molloy
By R. M. Lockley
By Richard D. Estes, Edward O. Wilson, Daniel Otte
By Paul Martin, Patrick Bateson (Professor Sir, King's college, Cambridge)
By Victoria Stilwell
By Andrew F. Fraser, Donald M. Broom, Donald F. Broom
By Eva Meijer
By Kevin N Laland, Gillian R Brown, Evolutionary Perspectives on Human Behaviour, Kevin Laland & Gillian Brown
By Bessant, Claire
By James Bridle
By Kathleen R. Gibson (University of Texas Health Science Center, Houston), Tim Ingold (University of Manchester)
By Sverdrup-Thygeson, Anne
By Frans de Waal (Emory University)
By Shirley C. Strum
By Alison Davies, Alissa Levy
By Tim Harris
By Michael L. Morrison, Bruce Marcot, William Mannan
By Stephen Lea
By Battersea Dogs' Home, Ben Hubbard
By Jean Clobert (, Universite Pierre et Marie Curie, Paris), Etienne Danchin (, Andre A. Dhondt (, Cornell University, Ithaca), James D. Nichols (, Patuxent Wildlife Research Centre, Maryland)