Job 39:14

Which leaveth her eggs in the earth - That is, she does not build a nest, as most birds do, but deposits her eggs in the sand. The ostrich, Dr. Shaw remarks, lays usually from thirty to fifty eggs. The eggs are very large, some of them being above five inches in diameter, and weighing fifteen pounds - Goldsmith. “We are not to consider,” says Dr. Shaw, “this large collection of eggs as if they were all intended for a brood. They are the greatest part of them reserved for food, which the dam breaks, and disposeth of according to the number and cravings of her young ones.” The idea which seems to be conveyed in our common version is, that the ostrich deposits her eggs in the sand, and then leaves them, without further care, to be hatched by the heat of the sun. This idea is not, however, necessarily implied in the original, and is contrary to fact. The truth is, that the eggs are deposited with great care, and with so much attention to the manner in which they are placed, that a line drawn from those in the extremities would just touch the tops of the intermediate ones (see Damir, as quoted by Bochart, “Hieroz.” P. ii. Lib. ii. c. xvii. p. 253), and that they are hatched, as the eggs of other birds are, in a great measure by the heat imparted by the incubation of the parent bird.

It is true that in the hot climates where these birds live, there is less necessity for constant incubation than in colder latitudes, and that the parent bird is more frequently absent; but she is accustomed regularly to return at night, and carefully broods over her eggs. See Le Valliant, “Travels in the Interior of Africa,” ii. 209, 305. It is true also that the parent bird wanders sometimes far from the place where the eggs are deposited, and forgets the place, and in this case if another nest of eggs is seen, she is not concerned whether they are her own or not, for she is not endowed with the power of distinguishing between her own eggs and those of another. This fact seems to have given rise to all the fables stated by the Arabic writers about the stupidity of the ostrich; about her leaving her eggs; and about her disposition to sit on the eggs of others. Bochart has collected many of these opinions from the Arabic writers, among which are the following: Alkazuinius says, “They say that no bird is more foolish than the ostrich, for while it forsakes its own eggs, it sits on the eggs of others; from the proverb, “Every animal loves its own young except the ostrich.”

Ottomanus says, “Every animal loves its own progeny except the ostrich. But that pertains only to the male. For although the common proverb imputes folly to the female, yet with her folly she loves her young, and feeds them, and teaches them to fly, the same as other animals.” Damir, an Arabic writer, says, “When the ostrich goes forth from her nest, that she may seek food, if she finds the egg of another ostrich, she sits on that, and forgets her own. And when driven away by hunters, she never returns; whence, it is that she is described as foolish, and that the proverb in regard to her has originated.

And warmeth them in dust - The idea which was evidently in the mind of the translators in this passage was, that the ostrich left her eggs in the dust to be hatched by the heat of the sun. This is not correct, and is not necessarily implied in the Hebrew, though undoubtedly the heat of the sand is made to contribute to the process of hatching the egg, and allows the parent bird to be absent longer from her nest than birds in colder climates. This seems to be all that is implied in the passage.