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Steller's sea eagles, a threatened species, gather on sea ice at the Shiretoko Peninsula in Japan.
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Shiretoko, Japan

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Shark Sizes: Whale Shark 46 feet, Basking Shark 33 feet, Great White Shark 23 feet, Megamouth Shark 15 feet, Nurse Shark 13 feet, Mako Shark 8 feet, Blacktip Reef Shark 6.5 feet, Bonnethead Shark 3.4 feet, Dwaf Lantern Shark 6 inches
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What is the Biggest Shark? A Chart Shows the Diversity of Shark Sizes

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Like a cake, the ocean has different layers—each with its own characteristics.
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Ocean Layers

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The Belize Barrier Reef Reserve System consists of the largest barrier reef in the northern hemisphere, offshore atolls, and several hundred sand cays, mangrove forests, coastal lagoons, and estuaries. The system's seven sites illustrate the evolutionary h
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Belize Barrier Reef Reserve System

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Many species of pink coralline algae, which cements coral reefs together, cover a reef surface in the Southern Line Islands.
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Pink Coralline Algae

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The Brazilian Atlantic Islands site was inscribed on the World Heritage List in 2001. The rich waters of the Fernando de Noronha Archipelago and Rocas Atoll are extremely important for the breeding and feeding of tuna, shark, turtle, and marine mammals. Th
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Brazilian Atlantic Islands: Fernando de Noronha and Atol das Rocas Reserves

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Japanese scientists videotaped this female giant squid, alive, at the water's surface
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Caught on Video: Giant Squid

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Salps are tube-shaped, soft, transparent animals that swim through the ocean, straining out plant food as they go.
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Antarctic Salps

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A graph compares the crustacean biodiversity of coral reefs around the world.
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Coral Reef Biodiversity: A Comparison

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A comic explaining the impacts of global warming
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Student Comic Winner: The Impact of Global Warming

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A clutch bag made from fish skin, decorated with a large flower created with collaged shapes cut from fish leather.
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Hezhen Fish Skin Painting Clutch

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A vaquita swims at the the water's surface.
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The Vanishing Vaquita

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