'Wild' in the Bible

Does the wild donkey bray when he has grass? Or does the ox low over his fodder?

An empty-headed man becomes wise when a man is born as a wild donkey's colt.

Behold, as wild donkeys in the desert, they go forth to their work, seeking diligently for food. The wilderness yields them bread for their children.

"Who has set the wild donkey free? Or who has loosened the bonds of the swift donkey,

"Will the wild ox be content to serve you? Or will he stay by your feeding trough?

Can you hold the wild ox in the furrow with his harness? Or will he till the valleys after you?

and forgets that the foot may crush them, or that the wild animal may trample them.