Abstract
Commentary: Greater addition of neurons to the olfactory bulb than to the cerebral cortex of eulipotyphlans but not rodents, afrotherians or primates.
Highlights
Mammalian brains differ in many dimensions and how to compare them is one of the fundamental questions of comparative neuroscience
Primates olfactory bulbs seem to have a larger number of glomeruli for each functional olfactory receptor genes compared to rodents (Maresh et al, 2008; Moriya-Ito et al, 2015)
Adjustment effect in brain evolution process, it might be necessary for the other structures to increase their size in order to maintain their relative influence in the brain process
Summary
Mammalian brains differ in many dimensions and how to compare them is one of the fundamental questions of comparative neuroscience. In a recent paper related to this issue, Ribeiro et al (2014) examined the number of neurons within the olfactory bulb in several species of mammals.
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