Male and female] There is nothing in this account of the Creation to suggest that the sexes were not simultaneously created: contrast Genesis 2:21-23, which is from the earlier document.
29, 30. The writer of the Priestly narrative here represents men and animals as living only on vegetable food. We seem to trace the thought of a primitive golden age, when the animals did not prey on each other, but lived at peace together: cp. Isaiah 11:6-9; Isaiah 65:25; Hosea 2:18. It is he also who records the permission to use animal food after the Flood (Genesis 9:2-3). But the parrallel narrative from the Primitive document refers to the keeping of flocks (Genesis 4:2; Genesis 4:4; Genesis 4:20), and takes no notice of any prohibition of animal food.'