[Freedom2specul8]

http://www.factmonster.com/ce6/society/A0859828.html

Natural mummification occurs in favorable soils and climates, particularly cold, arid areas, ice, and peat bogs.

[nycgal]

The more odor at the site, the more insects. Little odor at the site

[Freedom2specul8]

oftentimes, moisture settles underneath the body... the moisture would allow for animals to com ein (garbled)
...this was dry..a lot of moisture gives a lot of rotting and there wasn't a lot of rotting. There was no complexity of community..the body had been there a lot longer and there was no reason for insectes to remain there.

[afraidfortherepublic]

...particularly cold, arid areas, ice, and peat bogs.

I don't think that describes the desert outside of San Diego.