What natural conditions influenced the occupation of the Germans?

The Germans inhabited lands that, for the most part, were unsuitable for farming. But these lands were very abundant in vegetation, which was suitable for livestock feed. For a long time, for the Germans, wealth was calculated precisely by the number of heads of cattle, hence it follows that the Germans were engaged in breeding livestock. The vast forests favored hunting, which the Germans did, thereby hardening themselves and improving their physical form. The rivers flowing in the territory of the settlement of the Germans made it possible to engage in fishing.