You know those animals we dissected in high school for physio? Did you have the ones with colored rubber on the insides of the blood vessels to show the difference between the veins and arteries? what is the job title of the guy who exsanguinates cats put down at the pound and then quazi-en-sanguinates with red and blue dyed rubber. i bet a bunch of them are medical students. But i bet there's a handful of middle-aged ones in there who, when they were the age of the students they work with, left behind education and decided they wanted to work with animals. Many of them are slow. The students are in charge; without anyone having to say it either. Thanks, guys. It was really cool to see how the veins and arteries sometimes made tiny detours they weren't shown doing in the book.