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  1. Diver exploring the Felipe Xicotencatl shipwreck in Cozumel, Mexico
  2. Two divers silhouetted in light at entrance to Chac Mool cenote, Mexico
  3. Diver passes through light beams in Chac Mool cenote in Mexico
  4. Upside down jellyfish over sand in Caribbean Sea
  5. Diver enters the cavern system in the Riviera Maya area of Mexico
  6. Sea Nettle Jellyfish in Atlantic Ocean
  7. Schooling Crevalle Jacks on Caribbean reef
  8. A yellowline arrow crab in a blue vase sponge in Caribbean waters
  9. Caribbean Reef Squid at night on reef
  10. Giant sea anemone on reef in Cozumel, Mexico
  11. Cavern divers enter cenote system in Mexico's Yucatan Peninsula
  12. Sea Nettle Jellyfish in Atlantic Ocean
  13. Flying Gurnard on sand in Carribean Sea
  14. An Invasive Indo-Pacific Lionfish off the coast of North Carolina
  15. Yellowline Arrow Crab on anenome in Caribbean Sea
  16. A cavern diver ascends in the cenote system at Yucatan Peninsula, Mexico
  17. Divers visit the Pelicano shipwreck on the bottom of the Caribbean Sea
  18. Two scuba divers in the cenote system on the Yucatan Peninsula of Mexico
  19. Upside down jellyfish in Caribbean Sea
  20. Invasive Indo-Pacific lionfish on wreck in North Carolina
  21. Sea nettle is host to a small shrimp in the Atlantic Ocean
  22. Whale shark feeding off the coast of Isla Mujeres, Mexico
  23. Schooling silversides on Caribbean reef
  24. Close-up of orange cup coral in the Caribbean