Hermit crab gives rise to the popular name "hermit crab", by analogy to a hermit who lives alone. Several hermit crab species, both terrestrial and marine, have been observed forming a vacancy chain to exchange shells. When an individual crab finds a new empty shell it will leave its own shell and inspect the vacant shell for size. If the shell is found to be too large, the crab goes back to its own shell and then waits by the vacant shell for up to 8 hours. As new crabs arrive they also inspect the shell and, if it is too big,
Spider-Island Book Day edition of "The Amazing Spider-Man". Madame Web warns Spider-Man of the events that are to come, but Spider-Man dismisses the warnings as nonsense. Meanwhile, the Jackal is seen recruiting spider-powered criminals for his project, along with a severely mutated Kaine, now called Tarantula. He has a large secret lab, in which clones of Miles Warren are seen to be working. The Jackal has a mysterious female benefactor called the Spider Queen. Peter's girlfriend, Carlie Cooper, shows him she has spider-powers. He and Carlie hear a news report telling of several hundred New Yorkers who have manifested spider-powers. The