The Artic & its wild life / Bryan Sage; Dr. Hugh Danks; Eric Haber; Professor Peter G. Kevan; Dr. Thomas G. Smith
Ourselves and other animals : from the TV series with Gerald and Lee Durrell / Peter Evans; introdução de Geral Durrell
The natural history of butterflies / John Feltwell
The chimpanzees of Gombe : patterns of behavior / Jane Goodall