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The Ocean Blog

"Open Wide" spread from Citizens of the Sea by Nancy Knowlton.
The fringed baleen plates are easy to observe as this North Atlantic right whale skims the water’s surface while it feeds. Many baleen whales suck in as much water was possible, and then push it out...
The goblin shark ( Mitsukurina owstoni ) is one of the creepier fish out there! It has a long, prominent snout covered with special sensing organs (ampullae of Lorenzini) that help it to sense...
With gnarled teeth and a perpetual frown, the sea wolf is a creature out of our nightmares! But despite its fearsome look, it isn't a danger to humans, largely preying on whelks, crabs, and sea...
This image from a 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...
This bait ball shows how small fish can react when larger predators are near by gathering tightly together in a ball-like formation that exposes the least number of fish. Fish species found in the...
No two snowflakes are alike. Every snowflake is beautiful in its own way. But this one’s pretty creepy. The snowflake moray eel ( Echidna nebulosa ) has white, black and yellow splotches all over its...
A veined octopus ( Amphioctopus marginatus ) briefly leaves its hiding spot, a seafloor shell, to devour a crab.
Great White Sharks breach to hunt -- with split-second timing they grab an unsuspecting seal or sea lion in one swift snatch. Follow the action in this slideshow of a breaching sequence .
Known to many simply as “shark girl,” Madison Stewart is an inspiring young woman with a passion to protect the creatures most people fear: sharks. S he’s been diving with sharks since the age of...
A right whale opens its mouth wide, revealing huge plates of baleen hanging from its upper jaw. There are between 200 and 270 baleen plates on each side of a right whale's upper jaw. They work like a...
Weddell seals grind their teeth on holes in the ice to keep them open to their comings and goings between ocean and air. Their dives can last over an hour when they are looking for an opening in the...
A beroid ctenophore lunges toward prey with its mouth wide open. Beroid comb jellies don't have tentacles to catch prey: instead, they can open their mouths and snap them shut tight to trap prey...
It's hard to imagine a 2000-pound animal launching itself out of the water while hunting, but the great white shark does just that. This spectacular behavior is called breaching, and great white...
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 around in the...
Laysan albatrosses ( Phoebastria immutabilis ) are incredible birds. They have a wingspan of more than 6 feet, soaring vast distances without flapping their wings. They can go years without even...
These "elevator" rudists, an ancient bivalve, used one long heavy valve to anchor themselves in the sediment. They used their tentacles (shown here in pink) to filter food from the sea water. And...
Follow a journey with satellite tags placed on bull sharks and tarpon. Both of these large predatory fish are found in coastal in-shore ecosystems and the two species have similar diets. If given the...
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