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This video has only 39 views currently, but the quality and expressiveness are deserving of more attention from my fellow cephalopod lovers. Particular attention should be paid to visual recognition of the diver at 0:17 and use of tentacle greeting posture at 0:34 as cuttlefish moves backwards -- can be interpreted (in my inexpert but obsessive determination) as "Friend or foe?" From 0:34 to 0:45 the cuttlefish changes color rapidly, first camouflaging itself but then apparently choosing to stand out. At 1:00 we shift to another encounter with either the same or different cuttlefish feeding, this time accompanied by a second cuttlefish -- notice the personality difference as the larger cephalopod again backs away rapidly and cautiously signals with its tentacles, while the smaller cuttlefish continues feeding unperturbed.