By Clegg, John
By Duddington, C.L.
By McDiamid
By Brown, David S
By Balcombe, Jonathan
By Patrick Barkham
By Wootton, Robert J.
By Laverack, M. S.
By Lalli, Carol M., Parsons, Timothy R.
By Scales, Helen
By Capuzzo, Michael
By Wootton, Anthony
By DK
By Gill, Peter
By American Cetacean Society, Flaherty, Chuck, Gordon, David G.
By Godfrey-Smith, Peter
By Crawford, Dean
By Jones, Professor Steve
By Erica Cirino
By Schofield, Lee
By Russell, Sir Frederick Stratten, Yonge, Sir Charles Maurice
By Coster, Dave
By Sundaresan, J., Sreekesh, S., Ramanathan, Al, Sonnenschein, Leonard, Boojh, Ram
By Okafor, Nduka
By Brils, Jos, Brack, Werner, Müller-Grabherr, Dietmar, Négrel, Philippe, Vermaat, Jan E.
By Rodriguez, Pilar, Reynoldson, Trefor B.
By Ringelberg, Joop
By Allan, J. David, Castillo, Maria M.
By Diop, Salif, Barusseau, Jean-Paul, Descamps, Cyr