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Sep 28 2012 - 10:35am
This bluefin trevally is lucky to call Hawaii’s Maro Coral Reef, part of the Papahānaumokuākea Marine National Monument, its home. Maro is the largest reef in the Northwest Hawaiian Islands...
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Sep 27 2012 - 9:45am
A mangrove tree crab (Aratus pisonii) clings to a leaf near the Smithsonian Institution’s marine laboratory on Galeta Island, Panama, part of the Smithsonian Tropical Research Institute.
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Sep 26 2012 - 9:12am
A Galapagos sea lion (Zalophus wollebaeki) rests on a beach in Ecuador. The population of these charming animals swings wildly during El Niño events, but is declining overall. They are currently...
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Sep 25 2012 - 10:05am
An emperor penguin chick (Aptenodytes forsteri) huddles under its mother's legs to keep warm in the long Antarctic winter. Learn more about research on emperor penguins and other Antarctic creatures.
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Sep 24 2012 - 10:45am
In this close-up photo, you can actually see the photosynthetic algae, or zooxanthellae, living inside a tiny coral polyp. Look for the brownish-green specks in the colorless polyp. Corals depend on...
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Sep 20 2012 - 11:45am
Sperm whales have conical teeth on their long, narrow, lower jaw. The teeth fit neatly into sockets in the upper jaw, which has no teeth. This arrangement is a perfect adaptation for slurping up soft...
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Sep 19 2012 - 10:11am
The Sargassum frogfish Histrio histrio (Antennariidae) is a small but voracious predator - it can ingest animals up to it’s own size! The fins of the frogfish are perfect for creeping...
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Sep 17 2012 - 9:18am
Alien-looking creatures like this deep-red jellyfish (Crossota norvegica) swim in the Arctic Sea. Learn more about Arctic sea life in our Under the Arctic Ice story, or at the home page for the...
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Sep 14 2012 - 12:33pm
For centuries, the Baltic Sea has provided European flounder (Platichthys flesus) and other fish for millions of people. Since the early 1980s, the nations surrounding the sea have coordinated...
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Sep 13 2012 - 10:36am
Another common species of sargassum shrimp, Leander tenuicornis (Palaemonidae), can be spotted by its long transparent claws or "chelae". Very similar shrimp are found in near shore...
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Sep 12 2012 - 10:45am
This scanning electron micrograph magnifies the tiny teeth that cover the surface of the giant squid’s tongue-like organ, or radula. Seven rows of sharp teeth help direct tiny pieces of food down the...
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Sep 11 2012 - 9:45am
Imagine an adult person – now triple that size. That’s the size of the great white shark (Carcharodon carcharias). The biggest great white sharks can reach up to 20 feet long, but most are smaller....