By Young, Geoffrey
By Thompson, Paul, Wilson, Ben
By Mark Carwardine, Erich Hoyt, R. Ewan Fordyce, Peter Gill, Mark Carwardine, Erich Hoyt
By Reader's Digest
By Russell, Sir Frederick Stratten, Yonge, Sir Charles Maurice
By Dubinsky, Zvy, Stambler, Noga
By Jamieson, Alan
By Patterson, Matthew A., Mair, Rachel A., Eckert, Nathan L., Gatenby, Catherine M., Brady, Tony, Jones, Jess W., Simmons, Bryan R., Devers, Julie L.
By Wehrtmann, Ingo S., Cortés, Jorge
By Richardson, Laurie L., LeDrew, Ellsworth F.
By De Silva, Sena S., Davy, F. Brian
By United Nations
By Snoeijs-Leijonmalm, Pauline, Schubert, Hendrik, Radziejewska, Teresa
By Cawardine, Mark
By Coster, Dave
By Axelrod, Herbert R.
By Heritage, Bill
By Gill, Peter
By Rundle, John, Burgess, Peter
By American Cetacean Society, Flaherty, Chuck, Gordon, David G.
By Axelrod, Herbert R., Schultz, Leonard
By Godfrey-Smith, Peter
By Jones, Professor Steve
By Dick Mills
By Erica Cirino
By Goodwin, David
By Jepson, Lance
By Crawford, Dean