"God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and overall the earth, and over every creeping thing that creepeth upon the earth." (Gen. 1.26).
But what does "dominion" really mean? It is traditionally interpreted as "to subdue" or "to rule over." When taken to an extreme, it can include oppression and exploitation. However, an exploited planet Earth does not leave humanity richer. Perhaps there is a deeper, more sustainable aspect of dominion that includes a sense of service to one's fellow creatures and even a compulsion to protect those who cannot protect themselves. (From The Christian Science Monitor)