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Beluga whale sighting in Britain’s River Thames

Another Southern Resident killer whale is losing body condition, and researchers are concerned about the pregnant females

Warmer Arctic waters attract surprising visitors: clams, fish and whales

Thousands of Pacific walruses again herd up on Alaska coast

Scientists baffled by number of whale deaths on the coasts of Scotland and Ireland

Hundreds of Seals Are Dying on the New England Coast

Gulf of Maine Water Temperatures Soar Near Record Highs After Ocean 'Heat Wave'

After 3 days, ‘stressed’ sea lion that ventured into Sitka can’t find its way back to the ocean

Toxic Chemicals Banned 20 Years Ago Finally Disappearing From Arctic Wildlife

Pod of Pilot Whales Unexpectedly Spotted in Westfjords

Nunavut hunter killed by polar bear and cub

Giant 50,000 pound whale washes up on beach shore

Record Numbers Of Beaked Whale Deaths Cause Alarm

2nd right whale death of year reported off of Massachusetts

Rare Walrus Sighting in East Iceland

Tests find dead seals had avian flu and distemper viruses

Nine Whales Stranded in Eastfjords

New England Seals Test Positive for Avian Flu and Distemper

Sea Lion (Eumetopias jubatus) Sighting in Utqiaġvik

Over 30 dead harbor seals wash ashore in southern Maine in 2 days

Bottlenose Whales Spotted in Northern and Eastern Fjords

Whale-dolphin hybrid species discovered off coast of Hawaii

Scientists puzzled by right whale's appearance off Iceland

Decomposed whale washes up on Old Orchard Beach, draws crowd

Polar Bears Appear Where They Never Were Before

Dead Sea Mammal and Sea Birds on the Beach

Porpoise sighted in Pastolik River

Orcas of the Pacific Northwest Are Starving and Disappearing

Are great white sharks sinking their teeth into Bering Sea seals?

Sperm whale found dead off beach near Blenheim during weekend

14 minke whale deaths in Maritimes this year

Exploding Salish Sea seal population sparks call for a cull

Three dead gray whales wash up on Kodiak Island beaches in one week

Whale strandings off Washington-Oregon coast highest in nearly 2 decades

Beached Gray Whale (Eschrichtius robustus)

Two deaths, no births for Southern Resident orcas over the past year

Sea Otter (Enhydra lutris) Foraging in Re-occupied Soft Bottom Habitats

Mysterious marine mammal injuries hint that some sharks are shifting their range northward into the Arctic - Arctic Today

Fatal feline feces: Scientists discover cause for recent monk seal deaths

Sea Otter (Enhydra lutris) Sighted in the Haro Strait

Rare killer whale sighting in Victoria's Inner Harbour

Where salmon recreational fishing will be closed to boost orcas

Beluga whales visiting Alaskan river earlier, in greater numbers: researcher

Gulf Islanders raise alarm over too many whale-watching boats

Eagles Deck Out Their Nest With Kelp

Washed-up Carcass Tangled in Netting

More polar bears are entering communities in East Greenland, hunters say in new survey

Pair of Sea Otters (Enhydra lutris) Observed in Cordova Channel

Sea otters make a comeback in southeast Alaska, and fishermen are not happy

First right whale of the season spotted in Canadian waters

Bowhead whales, dwellers of icy seas, enjoy steady growth off Alaska in the age of climate change

Finnish Coast Guard rescues humpback whale trapped in fish net off west coast

Fishing Boat Lifted by Whale

Taken to tusk: Walrus discovery surprises remote Alaskan village - Independent.ie

Record number of killer whales sighted on Monterey Bay

North Slope whalers bring in a spring bounty

Walrus haul out near Port Heiden

With 50+ Ringed Seal Sightings, Unalaskans Start Tracking The Unexpected Species

Wolves are eating sea otters near Gustavus. What does that mean for the deer?

Humpback Whale Baby Boom Near Antarctica

Alaskan Killer Whales in British Columbia

Walrus (Odobenus rosmarus) Herd at Hook Lagoon

‘Bachelor herds’ of walrus gather near Port Heiden, where they haven’t been seen in decades

Shifting species composition of sealions at Hornby Island

Bivalves recently cracked by sea otters (Enhydra lutris) indicating re-occupation

Walrus (Odobenus rosmarus) Haul-out On Port Heiden Beach

Abnormally large basking shark groups spotted off Canada’s east coast

Third ringed seal found in Unalaska sent for rehabilitation

N.L. polar bears damage snowmobiles, hot tub as they head north early

Many Ringed Seals (Pusa hispida) Hauling Out

Die-off of fur seal pups attributed to mites, pneumonia and changing sea temperatures

Sperm whale in the Salish Sea

Only 12 Vaquita Porpoises Remain

Scientists don't know why ice seals are appearing in ice-free Unalaska

No more ‘Kings of the Columbia’: Chinook salmon much smaller these days