Science Tattoos

I've had a fascination with tattoos for awhile; although I'd never get one, I get a kind of voyeuristic pleasure out of seeing other people's and hearing their stories. So I was happy to see a slideshow of science-themed tattoos on the Science Times today, from Carl Zimmer's new book, "Science Ink". These tattoos are also of an impressive design and quality, and many of their owners are (bad-ass) scientists themselves:

Jellyfish

Neural network

Ammonite fossil

The Golden Ratio

[Photos culled from Flavorwire, since the Times wouldn't let me copy theirs]