Book Reviewed in this article:

Goodenough, J., McGuire, B. & Wallace, R. 1993: Perspectives on animal behavior. John Wiley & Sons Inc.

Jarman, P. J. & Rossiter, A. (eds) 1994: Animal societies. Individuals, interactions and organisation.

Lever, Ch. 1994: Naturalized animals: the ecology of successfully introduced species. Poyser-Verlag, London.

Canadian Museum of Nature - Musée Canadien de la nature 1991: The secret world of animals.

1: Below and above the ground.

2: Under the water.

3: In the air.

4: On the earth.

5: Le monde secret des animaux.