Gaspar JekelyJust came across this nice study by Davidescu et al.
https://www.pnas.org/doi/10.1073/pnas.2206163120
Larger bodies in the placozoan Trichoplax show less coordination across cells.
"We quantify the trade-off between increasing size and coordination in a multicellular animal with a decentralized anatomy that shows evidence of criticality and hypothesize as to the implications of this on the evolution hierarchical structures such as nervous systems in larger organisms."
