Job 39:14-17

The ostrich lays its eggs on the ground and lets them warm in the sand. It does not stop to think that a foot might step on them and crush them; it does not care that some animal might walk on them. The ostrich is cruel to its young, as if they were not even its own. It does not care that its work is for nothing, because God did not give the ostrich wisdom; God did not give it a share of good sense.