A section of piglet corpus callosum processed using serial block-face scanning electron microscopy. Myelinated axons are depicted by the dark circular rings. This image was acquired using the Zeiss Sigma BP 3View SBF-SEM and segmented semi-automated, using Amira Software by Umnia Doha and Kingsley Boateng of IGB Core Facilities; Stephen Fleming & Dr. Ryan Dilger of the Dilger Lab, and the Piglet Nutrition and Cognition Lab in the Department of Animal Sciences.