Anybody know how to get the computer menus in place?  I havn't found an option for them.

I think a plausible method of disposing of that many dead would be a burial-at-sea kind of idea.  It never says if they lived near oceans or rivers, but mud huts does imply access to water.  And by placing their dead in the ocean/river, it gets them out of the way of the living Shofixti, in addition its eaten quickly and continues the cycle.

Now, if you picture the idea of burial in space...  It wouldn't be a big problem.  There's really no chance of hitting anything in space, especially if they are vaporized themselves with a glory device, or eject pods into the atmosphere of a planet where they're disintegrated upon re-entry (ala the Mirak in Star Trek).  Seem plausible to anybody else?