From Metomorphoses writes by Ovid

Bk I:68-88 Humankind

    He had barely separated out everything within fixed limits when the constellations that had been hidden for a long time in dark fog began to blaze out throughout the whole sky. And so that no region might lack its own animate beings, the stars and the forms of gods occupied the floor of heaven, the sea gave a home to the shining fish, earth took the wild animals, and the light air flying things. 

     As yet there was no animal capable of higher thought that could be ruler of all the rest. Then Humankind was born. Either the creator god, source of a better world, seeded it from the divine, or the newborn earth just drawn from the highest heavens still contained fragments related to the skies, so that Prometheus, blending them with streams of rain, moulded them into an image of the all-controlling gods. While other animals look downwards at the ground, he gave human beings an upturned aspect, commanding them to look towards the skies, and, upright, raise their face to the stars. So the earth, that had been, a moment ago, uncarved and imageless, changed and assumed the unknown shapes of human beings.

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http://ovid.lib.virginia.edu/trans/Metamorph.htm#488381090