Hi Hort
I just looked at the sol 73 releases.
There is a veritable cornucopia of bio-like objects in some of the sol 73 OMs.
In fact, I think it is possible that we are now seeing the soil binding principle up close in the image below and that these things may be related to the sod. The individual images that made up the RGB came from the weak magnet substrate rotation area (12141) although there is an off chance that it might instead be the silicone substrate.
I'll start to process some of the other images tomorrow but a quick look at some of them suggests that there might be some whos whispering.
Winston