Sheep and oxen, all of them, and wild beasts, too;
MIDRASH TEHILLIM
1.....(8.7)
In saying - You, and the beasts of the field, they were alluding to Samson. According to Rabbi Hanina son of Papa, God let the angels see Samson as he was capturing the three hundred foxes. According to Rabbi Simon, God let the angels to see Daniel go down into the pit of lions, ride upon their necks, and suffer no injurty.
RADAK
1. Flocks and cattle:
A.
The aleph of צֹאן (flocks) is elided in צֹנֶה, and the he of צנה is changed for aleph, as is seen in the word לצנאכם (for your flocks) (Num. 32:24). And he says flocks and cattle because they grow up with him, and are serviceable for his work and for his food and for his clothing. And the flocks include sheep and goats, and the cattle (אלפים) are the oxen.
B. all of them – with reference to the rest of the animals that grow up with him the horses and asses and camels.
C. And also beasts of the field – meaning the wild creatures of the field. And he adds - And also, for also over them, that do not grow up with him about his dwelling, he has dominion through his understanding and his cunning devices against them.
Rabbi HIRSCH
1.
In dealing with tame animals, man will show his mildness, but he will use all the power of his intelligence in attempting to cope with the “beast”. He tames also the beasts of the great outdoors, which do not attach themselves to men of their own accord; he knows how to tame the beasts so that they become pedestals for his might and dominion.