Fig. 4
From: A Cross-Species Brain Magnetic Resonance Imaging and Histology Database of Vertebrates
Comparative brain anatomy in selected avian and mammalian species. Coronal T2-weighted high-resolution MR images of the brains from the large-billed crow, toco toucan, Egyptian rousette (fruit bat), and rabbit highlight interspecies differences in commissural fiber organization. Notably, the anterior commissure is prominent in the avian brains, whereas the corpus callosum is well-developed in mammalian brains (indicated by arrowheads).
