“MO-1 is a magnetotactic bacterium capable of orienting its cell body along the geomagnetic field lines by using magnetosomes.”
Universal functional requirements, but without the identity of material components — sounds like design.
In past years, papers have tried to identify the subset of all genes in a genome that are essential for viability.
Chemicals that we shouldn’t find unless they are produced by life forms are sparking interest in exploring Venus from both public and private sources.
The take-home lesson is that evolution, on its best day, is an embarrassingly anemic process.