A Study of the Composition of Odours of Predators and the Application of Research Results in Letting Animals Return to Nature

There is an ecological relation between predators and prey species,and prey species are often able to detect predators by using olfactory cues. Odours of predators can cause the prey to produce the responses of behaviour freezing,avoidance or defensiveness. This paper deals with the influence of predators odours on the behavior and physiology of the prey species and practical applications in programs of letting animals return to nature.