Mmmm interesting ...

I'm sure this could be interesting, but ...

Recent research implicates acetylcholine signaling through muscarinic receptors in structural changes that take place in the honeybee brain in response to foraging. These new findings are consistent with research from earlier studies implicating cholinergic signaling in associative learning as well as in the response to an enriched environment in mammals, which suggests that cholinergic signaling may play a critical role in learning and memory mechanisms across phyla.

If I can find out what it means, I'll let you know.

Update: Google can make experts of us all:

Apparently acetylcholine was the first neurotransmitter ever identified. It is a chemical transmitter in both the peripheral nervous system and central nervous system in many organisms including humans. Cholinergic agents on the other hand enhance the effects mediated by acetylcholine. It seems these are important across the animal kingdom. But then you knew that already, didn't you?