Microglia take Guts

Zebra fish that lack
Gut microbiomes
Growing up end up

Socializing less
Than zebra fish with
Colonized colons,

And their neurons show
The consequences,
Which is evidence

For hypotheses
Microbiota
Are necessary

For developing
Brains, maybe even
In big-brained mammals,

More tests to follow.
Already some guess
This might be the link

Seen in Parkinson’s,
Autism Spectrum,
And ADHD

To harmed GI tracts.
Doesn’t it make you
Wonder a little

How far this could go?
What’s necessary
For ordinary

Brain development
Could also produce
Extraordinary

Developments, no?
Could social wizards
Have special colons,

Sage ecosystems
Favoring wisdom?
At our other end,

We’ve got to ask what
Gut microbiome
The hermit has got.