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John Hildebrand discusses his research at the Scripps Whale Acoustic Lab on the FLIP platform. Learn more about how scientists are using bioacoustics to study and protect whales .
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Many people love seals and sea lions, and it's easy to see why: they’re playful...
Humpback whales ( Megaptera novaengliae ) are the most abundant baleen whale in...
In the late 1990's, researchers at the Woods Hole Oceanographic Institution (...

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The polar bear ( Ursus maritimus ) is found in the Arctic and classified as a vulnerable species by the IUCN Red List of Threatened Species. This marine mammal can swim more than 30 miles when sea ice has receded due to warm...
Humpback whales ( Megaptera novaengliae ) can be found in Antarctic waters...
Harp seals are protected in the United States by the Marine Mammal...

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The threat that climate change poses to polar bears has received a lot of attention, but they are not the only Arctic...

The Ocean Blog

Jorge and I packed up the night we arrived in Panama with Aaron O'Dea and his team from STRI . The road we took in two field vehicles mostly followed the Panama Canal heading northwards; we had to...
A Northern right whale swims with her calf
Phoenix is seen skim feeding off the coast of Maine in August 2004. More about the right whale can be found in our Tale of a Whale featured story .
Fargo, the dog pictured here, is not just having a relaxing day at sea. He is helping researchers at the New England Aquarium in Boston detect scat (or poop) from North Atlantic right whales . The...
Since 1987, researchers have been tracking Phoenix. More about whales can be found in our Tale of a whale featured story .
A Grey Seal ( Halichoerus grypus ) poses in the waters off Acadia National Park in Maine. Grey seals live on both coasts of the Northern Atlantic, with breeding colonies in Great Britain, Ireland,...
There were fewer than 450 North Atlantic right whales in 2006. Yet it has been illegal to hunt them since 1935. Why haven’t populations increased? Traits that made right whales easy to hunt make them...
Walruses use sea ice as platforms on which to nurse their young and launch their dives for clams and other bottom-dwellers. Each spring, walruses move northward to stay close to these perches as ice...
Many people love seals and sea lions, and it's easy to see why: they’re playful, adorable, and quite photogenic. But what is the difference between seals and their cousins the sea lions? Both have...
A 2010 study of IUCN's Red List of Threatened Species found that one-fifth of the world's vertebrates (animals with backbones) are threatened with extinction, including this Hawaiian monk seal. The...
The International Union for the Conservation of Nature ( IUCN ) maintains the Red List of Threatened Species , an inventory of the global conservation status of plants and animals. In a 2010 study ,...
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 .
Narwhals ( Monodon monoceros ) are a type of toothed whale, best known for their long unicorn-like tusk. The tusk is normally found on male narwhals and is actually a tooth. Narwhals usually live in...
Phoenix – our favorite North Atlantic Right Whale – was spotted feeding this week off the coast of New Hampshire! Researchers track these highly endangered whales (there are only about 450 of them...
Monodontids, the group of whales that includes the belugas and narwhals swimming our ocean today, are emblematic symbols of the Arctic. However, their fossil record, although scarce, suggests that...
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...
In honor of Mother's Day, the Citizens of the Sea blog salutes ocean-going mothers everywhere. Especially a 60 year-old albatross named Wisdom. She holds the seabird records for both oldest bird and...
The false killer whale (pdf) ( Pseudorca crassidens ) is a large dolphin that, despite its name, is not closely related to the killer whale. Instead, it's named for similarities in their skull shapes...
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