Whether Adam in the state of innocence had mastership over the animals?

Objections

Objection 1 : It would seem that in the state of innocence Adam had no mastership over the animals. For Augustine says (Gen. ad lit. ix, 14), that the animals were brought to Adam, under the direction of the angels, to receive their names from him. But the angels need not have intervened thus, if man himself were master over the animals. Therefore in the state of innocence man had no mastership of the animals.
Objection 2 : Further, it is unfitting that elements hostile to one another should be brought under the mastership of one. But many animals are hostile to one another, as the sheep and the wolf. Therefore all animals were not brought under the mastership of man.
Objection 3 : Further, Jerome says [*The words quoted are not in St. Jerome's works. St. Thomas may have had in mind Bede, Hexaem., as quoted in the Glossa ordinaria on Gn. 1:26]: "God gave man mastership over the animals, although before sin he had no need of them: for God foresaw that after sin animals would become useful to man." Therefore, at least before sin, it was unfitting for man to make use of his mastership.
Objection 4 : Further, it is proper to a master to command. But a command is not given rightly save to a rational being. Therefore man had no mastership over the irrational animals.