==Fauna== The three climatic regions of Alberta have naturally a varying fauna.
In external habit these exhibit adaptations to every kind of climatic or physical condition:
To 44.4 The climatic conditions of the western districts of the state are entirely different from those of the other two regions.
The difficulty of sharply delimiting edaphic and climatic factors is seen in the case of temperature.
The nature of the soil appears, however, to be of secondary importance, provided that it is able to hold moisture and that climatic conditions of high and even temperature with considerable rainfall and absence of wind are satisfied.