New Defender's Study Bible Notes
7:21 moved upon the earth. “All flesh” died that moved on land. In a local flood, at least most of the animals (certainly all the birds!) would escape to higher ground.
7:22 breath of life. The “breath (Hebrew neshamah) of life” is clearly stated here to be a component of animal life as well as human life. Thus animals possess “spirit,” but not the “image of God.”