By Crocodilo, Blue
By DK
By Penny Bateman
By Hibbert, Clare
By Dougal Dixon
By Panchyk R
By David Brown
By Gowar, Mick, Harknett, Sarah-Jane, Collins Big Cat
By John W. Elder
By Jinny Johnson, Elizabeth Gray, Steven Kirk, Philip Whitfield (Tutor, Natural Science, King's college, University of London)
By Ganeri
By Daniel Pemberton, Delia Pemberton