Stunning underwater video by Jose Lachat at Aeon shows you major milestones in the life of an Australian flamboyant cuttlefish: including birth, courtship, and egg-laying before death. If you want to skip right to the sexy part, the mating dance starts at 2:19.

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Of the cephalopods, where everyone picked a handful of their favorite mollusk traits and went on, the cuttlefish wanted them all.