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a brittle star clings to a pink coral
Overview

Deep-Sea Corals

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A spiraled diatom with spines.
Slideshow

The Ocean Under the Microscope: Images from Nikon Small World

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“On an afternoon dive, I spotted a small group of sweetlips in the current among a shoal of juvenile convict blennies. It took me some time to get close to the fish without spooking them. I took several frames but this one was my favorite because of the
Slideshow

Ocean Fish Pictures

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A harp seal in icy water
Overview

Seals, Sea Lions, and Walruses

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two images cropped together of women at desks facing each other
Timeline

An Irrepressible Wave

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A shell placed in seawater with increased acidity slowly dissolves over 45 days.
Overview

Ocean Acidification

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Plastic bottles and other marine debris cover a rocky beach in Curacao.
Overview

Marine Plastics

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two mangrove trees in the crashing waves
Overview

Mangroves

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A sea turtle swimming
Overview

Sea Turtles

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The Peninsula Valdes in Argentina was inscribed on the World Heritage List in 1999. The site is home to important breeding populations of the endangered southern right whale (Eubalaena australis), southern elephant seal (Mirounga leonina), and southern sea
Slideshow

Marine World Heritage Photo Gallery

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Two octopuses sitting underwater highlight the different textures the animals can take on.
Overview

Octopuses, Squids, and Relatives

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