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The Ocean Blog

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...
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 .
As we dive deeper into winter in the northern hemisphere, the possibility of snow becomes an increasingly frequent topic of conversation. But did you know that the ocean gets a regular dose of ‘...
A parent Magellanic penguin ( Spheniscus magellanicus ) sits with its big chick. Magellanic penguins live in South America, breeding in colonies along the coasts of Chile, Argentina and the Falkland...
Like its terrestrial namesake, the Venus fly-trap anemone ( Actinoscyphia sp.) sits quietly and waits for food to drift into its outstretched tentacles, which are lined with stinging harpoons called...
Stinging cells (nematocysts) line the tentacles of this moon jelly ( Aurelia aurita ). Upon contact with prey or a predator, a venom-laden harpoon shoots out to stun or kill. Read more about...
Even if you aren't a hardcore birder, chances are you have some hidden love for penguins. These flightless birds have captured our hearts through countless movies, beautiful images and their adorable...
The deep-sea dragonfish ( Stomiidae ), also called the barbeled dragonfish, uses it's fang-like teeth to grab prey in its deep-sea environment . Like other deep-sea organisms, dragonfish have...
Frogfish are skilled hunters and some species are capable of blending into local environments such as coral reefs . A frogfish can camouflage itself so well that prey fish will swim close by without...
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...
Zombie worms ( Osedax roseus ) eat away at the bones of a dead whale that has fallen to the seafloor in Sagami Bay, Japan. These bizarre worms rely on whale bones for energy and are what scientists...
Marine biologists from MBARI nicknamed this startlingly large jellyfish—which grows over one meter (three feet) in diameter—"big red." It would be hard to miss, except that it lives at depths of 650...
A thresher shark’s long tail fin helps not only its swimming ability, but also its ability to hunt. It can use the fin to herd and trap schooling fish by swimming in increasingly smaller circles...
Endangered Pacific leatherback sea turtles now have nearly 42,000 square miles of Pacific Ocean to call their own. Thanks to a decision in January 2012 by the National Marine Fisheries Service, these...
This magnified photo provides a close-up look at copepods—tiny crustaceans that right whales feed on. There are many species of copepods that live throughout the water column, from floating at the...
The Titanic's sinking around 100 years ago created a new underwater habitat for organisms: the wreck itself. One of these is a species of bacteria -- named Halomonas titanicae after the great ship...
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 may look like a mane of hair, but it’s actually baleen from a North Atlantic Right Whale. Although it looks soft and furry, dried baleen is quite stiff, which made it useful for creating...
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