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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...
Monk seals -- the only completely tropical species of seal in the world -- are in trouble. Centuries of human exploitation and habitat destruction have caused the remaining populations of...
Polar bear siblings in the Churchill Wildlife Management Area near Hudson Bay spar playfully during migration.
A Florida manatee, Trichechus manatus latirostris , swims down a narrow channel into a freshwater spring late in the day.
Phoenix was photographed swimming off the coast of Canada in the Bay of Fundy in August 2007. More about the right whale can be found in our Tale of a Whale featured story .
Rachel Caauwe was one of a dozen artists who spent a recent Saturday sketching specimens from the Smithsonian's musky-scented marine mammal collection . Here she's shown drawing the remains of a...
Since 1987, researchers have been tracking Phoenix, one of the last North Atlantic right whales living today. It's estimated that there are fewer than 500 of these whales alive today. Read her story...
An adult giant squid struggles for survival in an encounter with a sperm whale - its only known predator. The whale will probably overpower and eat the squid. More about the giant squid can be found...
A view of the injured fluke belonging to Phoenix’s mother, Stumpy. It is not known what caused this injury. It possibly could have been an entanglement. More about whales can be found in our Tale of...
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...
Traveling aboard the Charles W. Morgan , a 173-year-old whaling ship on its 38th Voyage, I’m struck by its paradox: this vessel which spent years chasing and killing whales is now helping us to study...
The ocean is home to many moms of all shapes and sizes: from charismatic polar bears and dolphins to small fishes and shrimps and more. Learn about some of the diverse parenting habits of marine moms...
West Indian Manatees, Trichechus manatus , are found in warm, shallow coastal ecosystems along the southeastern North America and northeastern South America. They graze plants in mangrove ecosystems...
Whales swimming in the ocean are never really alone. Even if one swims by itself with no other whales for miles around, it still has company—the tiny microbes that live on its skin. For a long time,...
A harp seal ( Phoca groenlandica ) pup rests on the ice at sunset in the Gulf of St. Lawrence, Canada while its mother hunts. Adult harp seals have dappled gray fur, but the babies are born white and...
Nick Pyenson, the curator of fossil marine mammals at the Smithsonian's National Museum of Natural History, points to the skull and skeleton of a fossil "toothed" mysticete ( baleen whale ) on the...
In December 2003, researchers spotted Phoenix off the coast of Florida with her second calf. More about the right whale can be found in our Tale of a Whale featured story .
Since 1987, researchers have been tracking the North Atlantic right whale named Phoenix. More about Phoenix can be found in the Tale of a Whale photo essay .
Humpback whales ( Megaptera novaengliae ) are the most abundant baleen whale in the nearshore waters around the Antarctic Peninsula. They, along with millions of penguins, seals, seabirds, and other...
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