Limulus polyphemus or Horseshoe Crab is a threatened member of the arachnid family. Every year, about 10% of the horseshoe crab breeding population dies when rough surf flips the creatures onto their backs, a position from which they often cannot right themselves. In response, the ERDG launched a "Just Flip 'Em" campaign, in the hopes that beachgoers will simply turn the crabs back over. Thank you Dorie Petrochko for this graphite work.