Adam Clarke's Bible Commentary Verse 2. There came up out of the river seven well-favoured kine] This must certainly refer to the hippopotamus or river horse, as the circumstances of coming up out of the river and feeding in the field characterize that animal alone. The hippopotamus is the well-known inhabitant of the Nile, and frequently by night comes out of the river to feed in the fields, or in the sedge by the river side.
Matthew Henry Commentary
Verses 1-8 - The means of Joseph's being freed from prison were Pharaoh's dreams, a here related. Now that God no longer speaks to us in that way, it is n matter how little we either heed dreams, or tell them. The telling of foolish dreams can make no better than foolish talk. But these dream showed that they were sent of God; when he awoke, Pharaoh's spirit wa troubled.
Original Hebrew והנה2009 מן4480 היאר2975 עלת5927 שׁבע7651 פרות6510 יפות3303 מראה4758 ובריאת1277 בשׂר1320 ותרעינה7462 באחו׃260