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Sea lions generate thrust, or forward propulsion, by bringing their fore-flippers together in big sweeping motions called “claps.”  When a sea lion “claps,” it stretches its flippers out to the sides and sweeps them down. Then it tucks its flippe
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Aquatic Locomotion of a Sea Lion

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Photo of a man holding totoaba a vaquita caught in a net underneath.
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Vaquitas as Bycatch

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Spinner dolphins in a small inlet off the Kona coast, Hawaii.
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Spinner Dolphins

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Two polar bears at Cape Churchill in Manitoba, Canada
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Polar Bears, Cape Churchill, Manitoba, Canada

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Phoenix, a North Atlantic right whale tracked by researchers, was spotted near New Hampshire on May 5th, 2010.
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Phoenix Sighting May 2010

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Photograph from above of two right whales, one touching the tip of its mouth to the back of the other..
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Two North Atlantic Right Whales

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Walruses use sea ice as platforms on which to nurse their young and launch their dives.
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Walrus: An Arctic Mammal in Peril?

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The fringed baleen plates are easy to observe as this North Atlantic right whale skims the water’s surface while it feeds.
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Baleen in Action

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This is North Atlantic right whale #3333 who was spotted with fishing gear trailing from his mouth during an aerial survey off the coast of Georgia on January 29, 2008.
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Whale Entanglement

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Male northern elephant seals face off for the best beach territory for mating season.
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Elephant Seals Tussle for Territory

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This may look like a mane of hair, but it’s actually baleen from a North Atlantic right whale.
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Baleen Close Up

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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
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Southern Elephant Seal, Gold Harbour, South Georgia

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