Thanks for that link. I had not seen that before. Is it not amazing, seeing new arrivals quickly adapt the same posture, which to them must look like an effective way to catch fish which are normally not threatened by real crabs. The learn very quickly. Another interesting point is that cuttlefish eat Hermit crabs. What better disguise than to look like a Hermit crab. I am glad you are discovering the amazing tools cuttlefish use, not only as disguise from bigger predators which love to dine on cuttlefish, but also have learned that a good disguise can be used as an effective hunting technique. Their neural network (and their use of it) is truly astounding. As one researcher said, it is like watching little aliens successfully inhabiting one of the most hostile environments on earth. They are fascinating creatures.