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In the X-ray image of this Viper Moray Eel (Enchelynassa canina), note the second set of jaws in the “throat”; these are the gill arches, which are present in all fish.
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X-Ray Image of a Viper Moray Eel

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A plastic bag floats at sea.
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Plastic Bag Bans Work

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The siphonophores are an order of marine animals in the phylum Cnidaria (the same phylum containing jellyfish). 
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Siphonophores

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The Sian Ka'an site in Mexico was inscribed on the World Heritage List in 1987. The site's name means "Origin of the Sky" in Mayan and contains tropical forests, mangroves, and marshes, as well as a large marine area intersected by the Caribbean Barrier Re
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Sian Ka'an, Mexico

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The New Zealand Sub-Antarctic Islands site was inscribed on the World Heritage List in 1998. The islands are particularly notable for the abundance and diversity of nesting pelagic seabirds and penguins (including macaroni penguins, Eudyptes chrysolophus,
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New Zealand Sub-Antarctic Islands, New Zealand

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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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The Komodo National Park site in Indonesia was inscribed on the World Heritage List in 1991. The site hosts "Komodo dragons" (Varanus komodoensis), a unique species that exists nowhere else in the world and is of great interest to scientists studying evolu
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Komodo National Park, Indonesia

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The coral reefs of Ujung Kulon National Park in Indonesia, a World Heritage site, are dominated by a small number of coral species and support some of the richest fish fauna in the Indonesian archipelago.
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Ujung Kulon National Park, Indonesia

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Researchers on a boat try to to catch an oiled pelican in the Gulf of Mexico off the Louisiana coast.
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Netting an oiled pelican in the Gulf of Mexico

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This dog is helping researchers at the New England Aquarium in Boston detect scat (or poop) from North Atlantic right whales.
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The Search for Whale Poop

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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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