

Archea has some weird ‘critters’ in it, that much is for certain.
A cellular entity retaining only its replicative core: Hidden archaeal lineage with an ultra-reduced genome https://www.biorxiv.org/content/10.1101/2025.05.02.651781v1
note: biorxiv.org is a pre-print server. this paper has not made it thru the review process, as yet.

There’s an app for that, and it’s called Carrington.