Most of the specimens were originally brought from the Gordon museum. Each brain is preserved in alcohol and suspended in glass jars. The collection is made up entirely of mammals, except for a single turtle, allowing the visitors a comparative tour of mammalian brains. The brains were collected from Africa, Asia, South America and Australia and Europe. Most of the brains are whole, a few have been dissected to show the internal anatomy. Of particular interest are the tiger cub that was only a few hours old, and the domestic dog. The dog’s brain has been annotated and each section of the brain sports a tiny label that has been stapled to it.