What do they harvest down on the Body Farm?

The Body Farm is the last word in secular uses of the human body. The University of Tennessee keeps a farm where human body parts are left to decompose in different soils and water. Tracking the process, and the interaction with vermin, etc, gives investigators a way to decode the condition of bodies found outside.

Since the stone age, dead humans have been treated with superstitious or spiritual respect. In Madagascar the bones of one's ancestors are dug up and given a party, so the ancestors don't forget about the living.

Are we the first society to scatter the bodies of dead people around the back yard just to see how they rot.