Science Tattoo Friday: Back with a Neurochemical Vengeance

ByCarl Zimmer
November 02, 2007

“Here is a picture of my serotonin tattoo. I don’t know that it needs much more explanation than it’s my favorite neurotransmitter.”–Hayley

I thought there were more science tattoo out there. Last week brought nothing, but this week brought the collection up to 85.

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