All Cephalopods, excluding Nautilidae and Cirrina, release dark or luminous ink into water as an escape tactic to confuse predators.

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https://t.co/yDeE4sTQzI https://video.twimg.com/ext_tw_video/1774812017360359424/pu/vid/avc1/720x1280/r0u0qBRoKbTHEp0V.mp4?tag=12