New insight into the evolution of the nervous system

[Michael_Callen (Herculean Skeptic)]

@T_aquaticus

From what I have read, the peptides bind to receptors on the surface of neighboring cells. The intracellular portion of the receptor can then cause changes within the cell. You can think of it like a Rube Goldberg apparatus where the binding of the peptide to the surface receptor gets the whole thing going.

Very cool! Thanks for the explanation. So, it seems then that the article is probably correct as it is phrased in that the peptide is “signaling” one action or another, the receptor is passing along the message, and then some other interaction causes the appropriate action to occur? Such that the peptide is actually a code or signal?