Vasco Grilo🔸 comments on Total number of neurons and welfare of animal populations

[Vasco Grilo🔸]

I wonder if the power required by brains is proportional to the number of neurons across very different species. It seems to be so among mammals. From Herculano-Houzel (2011):

Based on glucose and oxygen metabolic rates in awake animals and their recently determined numbers of neurons, here I show that, contrary to the expected, the estimated glucose use per neuron is remarkably constant, varying only by 40% across the six species of rodents and primates (including humans).