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And when it comes to what group of sea creatures have the most different species, it turns out to be crustaceans, such as shrimp, crabs and lobster.

Overall, the report said crustaceans make up nearly one-fifth of the species in the ocean _ 19 percent. Close behind at 17 percent were mollusks such as squid, octopus, clams, snails and slugs. Fish make 12 percent of ocean species, and it’s 10 percent each for protozoa and algae.

Smaller shares go to segmented worms, sea anemones, corals and jellyfish, flatworms, starfish, sponges and other creatures.