The 'Skull Comparisons' meme, also known as 'Human Skulls,' originated as a stock illustration showing that regardless of race, religion, or orientation, all human skulls look the same. However, the internet added a final, deformed or Neanderthal-like skull to the bottom of the list to mock a specific group of people or a particularly bad opinion. Since gaining traction on platforms like Reddit and Twitter in 2017, it has become a staple for social commentary and lighthearted gatekeeping. It effectively uses visual contrast to imply that certain behaviors or beliefs are less 'evolved' or simply nonsensical compared to others.