This was a commission from The Amplifier Foundation, initially for use in the 2017 March for Science. The T-Rex skull image is a 1912 photograph from the American Museum of National History, available in the wikicommons.
Science or Extinction by Josh MacPhee is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
A black and white photograph of a T Rex skull, showing huge fangs, against a black background. Below in bold, white, lettering, the words: “Science or Extinction.”