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Chrysaora melanaster is a jellyfish found in the Arctic.
Overview

Jellyfish and Comb Jellies

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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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The coastline of American Samoa National Marine Sanctuary
Article

The Reefs of American Samoa: A Story of Hope

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An albatross soars over the ocean.
Article

Is It Love? Why Some Ocean Animals (Sort Of) Mate For Life

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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
Article

How Do Sea Lions Swim?

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Screenshot of opening slide for lecture "Efforts to Protect the Critically Endangered Monk Seal."
Video

Efforts to Protect the Critically Endangered Monk Seal

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Tropical hatchetfish, like the one shown in this X-ray photograph, live in the dark depths of the ocean. Like many other deep-sea fishes, they have large eyes and bioluminescent spots on their bellies.
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X-Ray Image of a Tropical Hatchetfish

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The first known filter feeder is a large shrimp-like creature called Tamisiocaris borealis. The feather-like structures on its head were used to rake plankton from the sea.
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The First Filter Feeder

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Jellyfish illustrations from Ernst Haeckel.
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Semaeostome Jellyfish

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Humpback whales spend their summers feeding in cold, food-filled Arctic and Antarctic waters before swimming to warmer waters for the winter.
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Humpback Whales Going After Herring

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The Papahanaumokuakea site in the United States was inscribed on the World Heritage List in 2010. The site is a vast isolated cluster of small low-lying islands and atolls surrounded by ocean that provides safe habitat for endangered species like the green
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Papahanaumokuakea, United States

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