A Brackish & Co field guide

Bacteria are talking.
We wrote down what they say.

Microbes signal, cooperate, freeload, compete for territory and move between people who live together. A lot of that looks uncomfortably like us. This is a public, plain-language map of what the research actually supports — and an honest list of what it doesn't.

papers cited

papers cited

claims on the record

claims on the record

open gaps named

open gaps named

Six rod-shaped bacteria arranged in a ring, exchanging chemical signals

The idea, in one paragraph

A single bacterium does almost nothing interesting. Put enough of them together and they start counting each other, sharing costly work, punishing freeloaders, holding territory, and changing the behaviour of the animal they live in. The parallels to human social life are striking — and that is exactly why the claims need checking.

Every statement on this site carries a confidence rating and links to the published work behind it. Where the popular story runs ahead of the evidence, we say so rather than smoothing it over.

The six themes

What we're actually mapping

All six

How to read this site

Every claim wears its confidence

Nothing here is presented as settled unless it is. These four labels appear on themes, claims and papers throughout.

Well established
Repeatedly demonstrated, with agreement across independent groups.
Emerging
Real evidence exists, but it is early, limited, or not yet replicated widely.
Contested
Studies disagree, or the popular version of the claim runs ahead of the data.
Not yet known
Open question. Nobody has answered this properly yet.