By de Waal, Frans
By Ratcliffe, N.A., Llewellyn, P., P. J.
By Ayres, Pam, Tait, Alice
By Prevosti, Francisco J., Forasiepi, Analía M.
By David Mech
By Brown, F., Crumpton, M. J.
By Attenborough, Sir David
By Jane Russ
By Bronson
By Li Quan
By Jordan, C.C., Oehme, P.
By Ryall, R. W., Kelly, J.S.
By Kettenmann, Helmut
By Conn, Dr. P. Michael
By Kolb, B
By Apps, Peter
By Burton, Maurice
By VOUK, VB
By Martin, Esmond Bradley, Chryssee
By Brusatte, Steve
By BR Martin, Martin, BR
By Adamson, Joy
By Edwards, Monica
By Lyneborg, Leif, Vevers, Gwynne
By Dowson, Nick, Rong, Yu
By Macdonald, David, Barrett, Priscilla
By Patrick, S., Larkin, M. J.
By Waal, Frans De