The sea monsters; rather, the jackals (tannin, the Aramaic form of the plural for tannim). Cruel, like the ostriches in the wilderness. So in Job (Job 39:14-16) it is said of the ostrich that she "leaveth her eggs in the earth, and warmeth them in dust, and forgetteth that the foot may crush them, or that the wild beast may break them.
She is hardened against her young ones, as though they were not hers." The description is literally true, if we add a detail not mentioned by the sacred poet. The eggs destined for hatching are deposited in a nest hole scratched in the sand, but there are other eggs laid, not in the sand, but near it, to all appearance forsaken.
These eggs, however, are not exposed in simple stupidity, though they do often fall victims to violence. "They are intended for the nourishment of the newly hatched young ones, which in barren districts would at first find difficulty in procuring food".