Why must there be a constant war between man (humans) and animals?

Six long seasons of constant war, what man would not be tired?

It is complicated by the fact that after 23 years of nearly constant war, people here do not feel safe without a gun.

So there was constant war for control of the land.

All these years, while my country has been engaged in constant wars, I have dreamed of coming back.

Rumsfeld has said the 21st century will be a time of constant war.

Who would keep them from fighting each other in constant wars?

From 1803 on, his reign was marked by constant civil war.

Channeling the male half was a constant war for control and survival.

If it were not for the ancient protocols, there would be constant civil war here.