The important in Gn in chapter 8 Noah his wife his son and his son’s wife and all the `animal were in the boat for 150 days then God notice Noah and the animals. With a great blow all the water went back down. After Noah sent a Raven and the raven came back and all the water was all around the world. Next he sent a dove until the dove didn't came back it was safe to come down the boat. When the dove didn’t come back everyone and animal went down to the dry earth and God said to let the animal to fertile. Finally build an altar and offered burnt offerings of clean animals.
"God made a wind sweep over the Earth, and the water began to subside"(Gn 8:1).
"He waited yet another seven days and then released the dove; but this time it did not come back"(Gn 8:12).
"Bring out with you every living thing that is with you-all creatures, be they birds or animals ... let them abound on the earth , and be fertile and multiply on it"(Gn 8:17).
The message of Gn 8 is talking about goodness of creation.