We will understand what man has wrought upon himself, why humans have left us here, alone.

The humans left our world when we asked them to.

A hundred thousand years after the Collision, all humans had left was each other.

If this thing was human, then other humans had left it here.

The penguins watched without moving as the two humans left the room.

That's less than a tenth of the time since modern humans left Africa.

The humans did not leave things to chance, if they had a choice.

I don't just dream of the day humans leave the Earth for other worlds.

There are many jobs which humans would rather leave to robots.

Everything would be fine on Earth if humans just left!