The effect of humans on other vertebrate species homo sapiens dominate the land today.
Something happened to make homo sapiens mutate into homo economicus.
The rest of the Homo sapiens ' skeletal bones are all intermixed with the other animal bones.
We read books that would have us believe fossilized footprints of Homo sapiens walked the earth millions of years ago.
But it will free this account of them from embarrassments if they be looked upon as a distinct subspecies of Homo sapiens.