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The Siphonophore posing for a photo next to the octopod

The siponophore appeared in the first episode of season three, The Octonauts and the Siphonophore. The Siphonophore is one large creature made out of many smaller creatures linked together. Each creature has a special job. Some of them glow, some grab onto their prey with hooks, and others shock their prey to kill it. The pink one also appears to be their leader.