20 Rarest and Most Unusual Sea Creatures

20 Rarest and Most Unusual Sea Creatures These sea creatures are so rare, that we only found 1 or 2 of them. How rare and unusual are they exactly? Find out here… 1. Promachoteuthis sulcus We start off our list with the Promachoteuthis sulcus. Known only by its scientific name, this species of squid is …

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