By Ellie Whitney, D Bruce Means, Anne Rudloe
By Nancollas, Tom
By Vermeij, Geerat J.
By Erica Cirino
By Swallow, Su
By Haggis-on-Whey, Dr. Doris, Benny
By Cafiero, Gaetano, Jahoda, Maddalena, Curtsinger, Bill, Nicklin, Flip
By Pedlosky, Joseph
By Pickard, George L., Emery, W.J., Emery Professor, William J.
By Burgess, Warren E.
By Sandy Sheehy (author)
By Philippe De Vosjoli
By National Geographic Kids
By Pitkin, Linda
By Jackman, Leslie.
By William I. Milwee
By Badger, David, Netherton, John
By Charlie, Jay, Blowfish, Bartley, David
By Macan, T. T., Cooper, R. Douglas
By Marjorie Guthrie
By Elliott, J.M., etc., et al
By Saunders, Graham D.
By Bob Freitag, Susan Bolton, Frank Westerlund
By Ganeri, Anita, Barber, Nicola
By Steel, Rodney
By Godfrey-Smith, Peter
By Allcock, Louise, Vecchione, Michael, Priede, Imants, Haren, Hans van
By Czerski, Helen
By Shelton, Richard