Fig 5. Comparison of neonates and adults for the only two cetacean species where such data is available.

Brain and body size, brain cell density, and cortical surface area comparisons between neonates and adults representing two dolphin species, Tt (A) and Oo (B). All data are from individual animals. Brain and body mass data as well as neuron and glial cell densities for the neonate Tt were published previously [40].