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Chrysaora melanaster is a jellyfish found in the Arctic.
Overview

Jellyfish and Comb Jellies

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two mangrove trees in the crashing waves
Overview

Mangroves

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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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a shark swims along a sandy seafloor
Article

An Angel’s Return: How eDNA Was Used to Rediscover the Angelshark

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An assortment of microbe illustrations seen by Leeuwenhoek under the microscope.
Timeline

Milestones In Marine Microbiology

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Seagrasses are flowering plants that can form dense underwater meadows and are an important shallow water habitat.
Overview

Seagrass and Seagrass Beds

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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Overview

Sea Level Rise

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

Marine Plastics

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a close up of bacteria
Overview

Marine Microbes

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This recently discovered hairy crab species (Kiwa hirsuta) has no eyes.
Overview

The Census of Marine Life

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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 deep sea jellyfish
Overview

The Deep Sea

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