It also shows up in Genesis 1 but to be fair, almost nobody understands Genesis 1 and to your point, Genesis 1 is covering the same scenario as Genesis 9: pole flip cataclysm that caused a global flood event. The 7 day story is meant to tell us what the aftermath of the pole flip looked like to the few survivors who made it through these evolutionary bottlenecks that explain punctuated equilibrium and stratigraphic homogeneity.
Discussion
Genesis 1 and 9 aren’t covering the same event. Genesis 1 is the creation of the cosmos from nothing. Genesis 9 is covenant renewal after judgment on a corrupted world.
You’re overlaying catastrophism and evolutionary theory onto a text that’s making theological claims about God’s sovereign ordering of creation and His covenant faithfulness.
I didn't say "event". I said "scenario".