Did you know that besides mammals, serotonin is found in allbilateral animals including worms and insects, as well as infungi andplants? Apparently, it's a thing (according to Wikipedia). We've always seen it as mostly a mood thing, but it drives all sorts of things. It's interesting reading. Between the Serotonin pin and the Caffeine and Dopamine pins that are also available, you can cover the bases with all of your favorite enamel molecule needs.
Approx size: .75"x1"
Pin Curiosities is our carefully curated collection of pins we think the community would dig. Every week we release two or more into the No_System store, and when they're gone, they're gone.