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A polar bear and its cub in Arctic National Wildlife Refuge, Alaska.
Slideshow

Celebrating Marine Moms

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A black and white illustration of a Cuvier's beaked whale.
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Cuvier's Beaked Whale

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Phoenix swimming with her calf.
Article

Scientists Use Bioacoustics to Protect Marine Mammals

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a spotted dolphin swims through the ocean at night
Photo

Atlantic Spotted Dolphins, Little Bahama Bank, The Bahamas

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Narwhals with their long unicorn-like tusks.
Photo

Narwhals Breaching

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“The southern elephant seal is a truly restrained behemoth. Males can grow to be five times larger than females, up to 5,000 pounds. This elephant seal may look fierce, but he was simply yawning over and over in the wave-wash. This allowed me to try mult
Photo

Southern Elephant Seal, Gold Harbour, South Georgia

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Elephant seals' eyes are specialized to dim light and, in particular, to light at the wavelength of 485 nm -- which is the same wavelength given off by the bioluminescent lanternfish that are the seals' main prey.
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Elephant Seals Laze on the Beach

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Smithsonian researchers eat a meal in preparation for a fossil excavation
Slideshow

A Squalodontid Success

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Walruses use sea ice as platforms on which to nurse their young and launch their dives.
Article

Walrus: An Arctic Mammal in Peril?

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Two men each hold a ceramic vessel at the archaeological excavation
Article

Archaeologists Study Early Whaling Community in Quebec, Canada

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A researcher holds an arm bone from a "toothed" mysticete whale from Vancouver Island.
Article

Dispatches from the Field: Treacherous stream crossings and a new fossil find

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A humpback whale breaching in Antarctic waters.
Article

Humpback Whales in Antarctica: What Are the Whales Doing?

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