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Killer whales ( Orcinus orca ) are master hunters, using speed, camouflage, and a variety of techniques to capture their prey. See how a different predator - the great white shark - finds its...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
In honor of Mother's Day, the Citizens of the Sea blog salutes ocean-going...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
How do we know where ocean animals swim day and night? Scientists are getting...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
Large whales are notoriously hard to study. Except when rising to breathe, they...

LATEST CATCH

This whale is entangled in fishing gear. Entangled whales often need human help to break free from the fishing gear . But the job is hard one that requires handling a small boat near the large (and often distressed) whale,...
The polar bear ( Ursus maritimus ) is found in the Arctic and classified as...
Humpback whales ( Megaptera novaengliae ) can be found in Antarctic waters...

DIVE DEEPER

Stretching up to 16.8 meters (55 feet) long and weighing up to 62 tons (70 tons), the North Atlantic right whale is one of...
A North Pacific right whale (Eubalaena japonica) swims in the Bering Sea.
Graceful spinner dolphins ( Stenella longirostris ) swim through the dazzling blue waters of the Papahānaumokuākea National Monument, northwest of the main Hawaiian archipelago. Papahānaumokuākea was...
A Twelve-Step group for wild animals with people-food addictions? Don’t be responsible for getting a dolphin hooked on human handouts! This cartoon satire portrays a dolphin trying to break his...
Scientists document a direct relationship between the extent of sea ice and polar bear survival. Future projected reductions in the extent of annual sea-ice due to global warming may result in the...
Three distinct types of killer whale, or orcas, can be found in the Antarctic, each with a different habitat and diet preference. One type of orca preys almost exclusively on the Antarctic minke...
Harp seals are protected in the United States by the Marine Mammal Protection Act . Although they are not considered endangered, as sea ice melting earlier and earlier each year, available harp seal...
A drawing of Phoenix from the Right Whale Catalog documents her callosity pattern and other identifying marks. More about whales can be found in our Tale of a whale featured story .
Lying on the ice with a few friends is not an unusual way to spend time for walruses, who tend to be sociable animals. Their groups can range from tens to thousands. Each individual herd has 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...
Polar bear siblings in the Churchill Wildlife Management Area near Hudson Bay spar playfully during migration.
This sea lion has been caught in killed in a giant drift net, or a “curtain of death,” as photographer Tom Woodward calls them. These giant drift nets, placed around the world’s oceans to catch...
In the late 1990's, researchers at the Woods Hole Oceanographic Institution (WHOI) invented the D-Tag —a radio device that can be attached by suction cups to a whale's back. Using a tiny underwater...
The Natural System of Wrangel Island Reserve site in Russia was inscribed on the World Heritage List in 2004. Located well above the Arctic Circle, the site includes the mountainous Wrangel Island,...
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