Total quantity of data scanned in, shown here as the distribution of image sizes at BrainMaps.org as of 06-18-2007 (a). The total size of the brain images is 16,435,723 MegaPixels, or 49.31 TeraBytes. The total number of images is 5264, with an average size of 3122.29 MegaPixels/image, or 9.37 GigaBytes/image. Distribution of datasets shown as a function of species (b). The distribution of image pixels shown as a function of species (c) shows that most of the image data online corresponds to the non-human primates, Chlorocebus aethiops, Macaca mulatta, and Macaca fascicularis.