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This week at the Smithsonian Ocean Portal we embark on an experiment we're calling "Make Me Care." The concept is simple: we ask a renowned expert to tell us why we should care about...
Hopefully you've never bitten into a delicious hunk of snow crab meat and...
These brittlestars ( Ophiothela mirabilis ) are not where they belong. These...

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A strain of this green seaweed, native to the Indian and Pacific Oceans, escaped public and private aquariums in California, Japan, Australia, and Monaco. It has spread widely in the Mediterranean, replacing native plants (such...
This ctenophore (a stingless jellyfish-like animal) is native to the east...

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Regardless of what continent you live on, the waters that surround it are home to marine invaders. The ocean is teeming with...

The Ocean Blog

If you want to study invasive species in the ocean, the Panama Canal offers a lot to explore. The ships passing through can inadvertently transport plants, animals, and even parasites from the...
The spotfin lionfish ( Pterois antennata ), with venomous spines extended, is native to Indo-Pacific reefs. Certain lionfish species have invaded reefs in Florida, the Caribbean and are moving up the...
Around 100 million years ago, grass from land adapted to live and reproduce while submerged in seawater—the modern-day seagrasses. This sea invasion by land plants happened four separate times,...
The majestic and highly predatory red lionfish ( Pterois volitans ) , native to the Indo-Pacific, is invading Atlantic waters. The lionfish is a popular home aquarium species, and some were most...
Alaska’s pristine coastline is ripe for an influx of invasive marine species such as the European green crab and the rough periwinkle (an Atlantic sea snail), warns a new study by a team of...
This photograph, much like Van Gogh’s Starry Night is awhirl with the colors and swishes of hundreds of fish. The focal point, however, is the lionfish. Lionfish ( Pterois antennata ) have been known...
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