Nanobes were discovered several years ago. They are 1/10 the size of the smallest known bacteria. They comprise the same chemicals that make up living cells: carbon, oxygen, nitrogen. They grow almost anywhere–even on a fingerprint on glass. Any DNA detected there might have come from the fingerprint itself.
Are they alive? Or are they semi-living, self-replicating systems that form a “missing link” between life and not-life? The jury is still out. Does anyone know of some good research done by someone other than the people who discovered them in the first place?