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The head of one bottlenose dolphin and the fin of another are visible above turquoise water in the Potomac River
Article

A Dive into Dolphin Data: The History of Bottlenose Dolphins in the Potomac River

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Bright bubblegum coral sits on a brown, hard substrate.
Article

Optimism in the Deep Sea - Connecting Corals, Museums, and Ocean Managers

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“This shark was cruising low along the reef known as Alcyone. Her left eye was glancing up toward other hammerheads when I took this shot from below.” -- Nature's Best photographer, Alan Studley.Equipment Used to Capture the Shot: Nikon D300; Tokin
Slideshow

Ocean Views from Nature's Best Photos

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Small red hyperiid.
Slideshow

The Hyper Eyes of Hyperiids: How Some Shrimp-Like Creatures See Light in the Deep Sea

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Waves breaking on the shore
Overview

Currents, Waves, and Tides

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Mangrove roots provide an underwater habitat for many marine species.
Slideshow

Mangroves: Photos of Plants and Animals

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Two Adélie penguins on Paulet Island, Antarctica
Overview

Penguins

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Arrow crabs are small, spider-like crabs that live on coral reefs.(CLICK IMAGE TO OPEN SLIDESHOW WITH MORE WINNING PHOTOS FROM THE CONTEST)
Slideshow

Selections from the Brian Skerry Flickr Contest WInners

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A spiraled diatom with spines.
Slideshow

The Ocean Under the Microscope: Images from Nikon Small World

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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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Corals, sponges, and algae are the major components of most coral reef communities as shown in this picture.
Overview

Corals and Coral Reefs

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Looking through this iceberg's reflection in the Antarctic water, you can see the iceberg below the surface—some 90% of its total volume.
Overview

The Arctic and The Antarctic

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