Genesis 8:19

every beast, every creeping thing, and every fowl, and whatsoever creepeth upon the earth, after their kinds, went forth out of the ark. Noah and his family were obedient, as usual. And as for the animals, down to the smallest reptile that had found shelter in the ark, they were undoubtedly glad to return to the life of freedom which they had enjoyed before the Flood. Thus the Lord, for the sake of Noah, did not fully destroy the earth, but intends to preserve it until He has carried out His work in His Church on earth. Nevertheless, we must not forget that the Deluge is a type and precursor of the last Judgment. When the patience and long-suffering of the Lord will finally have been exhausted, then the day of His wrath will strike the world like a thief in the night.