Big data exists in different forms. Cold Spring Harbor Laboratory has worked to digitize the entire mouse brain. Each of the different regions of the brain can be seen and visualized. The data is estimated to be about 500 Terabytes but the fantastic thing is that it is available for anyone to see and download. All it requires is a good internet connection. It is stunning to see that much data available so quickly in the image form and presented very simply in a browser.
If you want to see how it looks like, then see this video of the primary motor area.
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The mouse brain is available to browse at the website below.