Anyone know what these are??
I have a couple of basement bins. Today, I was transferring the contents of the active side of one bin to a new bin in preparation of harvesting castings. When I got to the very wet bottom of the bin, it was clearly anaerobic evidenced by the things that had not yet decomposed down there. Among the many worms, pot worms, mites and worm casings I found these kidney shaped UFO's. You can see their relative size in comparison to the worm casings. Anyone know???