They will show up in massive Fleets to gather the 30 mill or so, after the carnage. The best DNA has already been sequestered, as well as all the specie of the animal and insect kingdoms.

The Oceans are a different matter. That takes longer.
They will duplicate and transport the Heart of the Planet, which are the Oceans.

Billions of Specie. Much work.
The Planet is always in progress, and you are never exempt.

In fact, the homo sapien is gone.
You are defective.

You are the Body, and your ego failed you.
You're eternally obsessed.

Your Nature will be transported to its appropriate Realm.
The rest will simply die.
The Planet will be reformed and renewed.