Why do our faithful four-legged friends, usually gentle and peaceful, suddenly become aggressive? What postures and sounds do they use? How does an adult dog treat puppies? What do the behavior of dogs and wolves have in common? These and many other questions are answered by Finnish zoologist Professor Göran Bergman, who has been observing the behavior of his dogs for many years. His book, which tells in a popular form about the role and origin of the instincts characteristic of dogs, will be read with interest and benefit by numerous lovers of these amazing animals.

Drawings by the author. Translation from Finnish by Yu. K. Kayava, edited by Ph.D. biol. Science L. A. Gibet