10 Most Mysterious Sea Creatures Found in Deep Oceans 

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10. The Giant Squid

9. The Coelacanth

8. The Vampire Squid

7. The Goblin Shark

6. The Frilled Shark

5. The Anglerfish

4. The Blue-Ringed Octopus

3. The Yeti Crab

2. The Dumbo Octopus

1. The Megamouth Shark