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The Ocean Blog

The Hawaii Undersea Research Laboratory’s Pisces V submersible is lowered for a dive to study deep-sea corals. Learn more about research into deep-sea corals in the multimedia feature " Coral Gardens...
Black corals, like this one growing on the Manning Seamount off the New England coast, often resemble bushes or trees. Contrary to its name, the living tissue of black coral can be one of several...
Compare the healthy coral on the left with the bleached coral on the right. Increased water temperatures caused the bleached coral to lose the microscopic algae that give the coral color and provide...
Crocheted corals from the Smithsonian Community Reef group on Flickr. The community reef project is a satellite reef of the Institute For Figuring’s Hyperbolic Crochet Coral Reef exhibition, was on...
Local yarn and craft shops were highly involved in creating the Smithsonian Community Reef —the local community’s accompaniment to the Hyperbolic Crochet Coral Reef exhibit. The HCCR, created by...
I still haven’t gotten beyond the ‘gee whiz’ factor of studying communities of animals in deep-sea coral habitats. Climbing over undersea mountains and along the steep cliffs of submarine canyons...
Sea stars are important members of marine ecosystems, especially in the tropics. We may think of tropical coral reefs as being home mainly to fish and corals, but in fact these habitats are home to a...
Much of the carbon dioxide we emit into the atmosphere ends up in the ocean. As CO 2 levels rise, seawater becomes more acidic. This change in chemistry poses a serious threat to marine organisms...
Unlike the shallow tropical coral reef pictured on the top, the deep-sea Oculina reef at bottom does not require sunlight. Learn more in the article " Coral Gardens of the Deep Sea ."
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