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Convict surgeonfish are the roaming sheep of the reef but, instead of noshing on grass, they feed on algae.
Photo

Surgeonfish: Indicators of a Healthy Reef

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A harp seal in icy water
Overview

Seals, Sea Lions, and Walruses

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A photo of a European flounder in the Baltic Sea.
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Flounder Faces Pollution and Overfishing in Baltic Sea

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A photo of zebra mussels clinging together, the mollusks have successfully invaded brackish and freshwater areas across North America.
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Zebra Mussels (Dreissena polymorpha)

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Illustration of the Paleozoic shallow water habitat.
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A Mississippian Marine Habitat (359 - 318 Million Years Ago)

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A diagram of the different soil layers located at Hare Harbor, Quebec in 2008. Wood chips were located at the deepest layer, then whale bone, then codfish bones.
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Underwater Archaeological Stratigraphy

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The Tubbataha Reefs National Park site in the Philippines was inscribed on the World Heritage List in 1993. The site is an example of a pristine coral reef with a spectacular 100 m (330 ft) perpendicular wall, extensive lagoons, and two coral islands - all
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Tubbataha Reefs Natural Park, Philippines

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Mistaken Point New Foundland
Audio

Ediacaran Fossils: One Species at a Time

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The Exxon Valdez oil spill occurred on March 24, 1989 when an oil tanker grounded on a reef in Alaska’s Prince William Sound. It spilled almost 11 million gallons of crude oil, which reached 1,300 miles of coastline. The spill's remote location, accessib
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Exxon Valdez Oil Spill

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Aegina, a type of jellyfish, swims through the water.
Slideshow

A Look at Life in the Deep Sea

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