Tag Archives: nematocysts

Glaucus atlanticus: beautiful blue sea slug, or Pokemon?


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Glaucus atlanticus (commonly known as the sea swallow, blue angel, and blue dragon) is a small, blue, pelagic sea slug. As I discussed in my post on why gastropods are awesome, this nudibranch can feed on cnidarians (like jellyfish) and harvest their nematocysts (stinging cells)—so this gorgeous slug not only looks like a Pokemon, but it can actually copy other creatures' moves!

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Why Cnidarians (jellyfish, coral) are awesome


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Everybody knows that coral are essential for marine biodiversity. Most people don't know, however, that they are also secretly brutal bad asses. As cnidarians, corals and anemones (anthozoans) are related to the feared jellyfish (medusazoans). The common thread that unites cnidarians is the presence of stinging cells. Read more

Why Gastropods (snails & slugs) are awesome


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Snails. They're slow and boring. We regularly use "snail-like" as an adjective to diss something for being so slow - hardly a positive connotation. What could be so exciting about snails? For starters, what about the fact that they're basically moving fortresses? Okay, maybe this doesn't impress you. Turtles have the same thing going for them, after all. Read more