Invertebrates

Animals without backbones make up a huge percentage of the ocean’s biodiversity. They aren’t just small (like pteropods) or squishy (like jellyfish); the giant squid and corals that build huge reefs are also invertebrates.

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Chrysaora melanaster is a jellyfish found in the Arctic.

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Jellyfish and Comb Jellies

Jellyfish and comb jellies are gelatinous animals that drift through the ocean's water column around the world. They are...