My thanks as usual to:
My husband, Peter;
My editor, Paul Sidey;
My typist, Anne Pitt.
Especial thanks to the author A. C. H. (Anthony) Smith,
Without whose encouragement this book would not have been written, and
Finally, last but not least,
Love and thanks to "Wellington,"
Once again my companion and also this time
Invaluable referee on the peculiarities of animal behavior . . .