By Walker, Gabrielle
By Rankin, Richard
By Levin PhD, Janna
By Henbest, Nigel, Cooper, Heather
By May, Derwent, Blake, Richard
By Fisher, John
By McClelland, Elizabeth Anne
By Louise Glazebrook, Ping Zhu
By Wyatt, John, Ackroyd, Norman
By H. E. Bates, Agnes Miller Parker, Laura Beatty
By Pippa Mattinson, Mattinson, Pippa
By Sagan, Carl, Druyan, Ann
By Burnham, Robert, Levy, David H.
By Edgar, Jim
By Sparrow, Giles
By Love Food, Lisa Silcock, Living Earth Foundation, H.R.H The Prince of Wales
By Waite, Charlie
By Boss, Alan
By Amanda O'Neill, Philip de Ste. Croix, Neil Sutherland
By Kersey, Geoff
By Jacquemier, Sue
By Channel, Discovery
By Bendavid-Val, Leah
By RSPCA
By Stephen Nelson
By Winchester, Simon
By Dixon, Dougal
By Anderson, Edward Bertram, etc.
By Stewart McPherson, Colin Clubbe, Martin Hamilton