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a star shaped fossil blastoid
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Blastoid Fossil

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A gentoo penguin tongue with keratin bristles
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Penguin Tongue

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Infographic showing changes in Tampa Bay seagrass cover over time.
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Seagrass Changes in Tampa Bay

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Lamlash Bay marine reserve with Holy Island in the background. 
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Lamlash Bay

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Sea walls must be maintained consistently and will need to be built higher and higher as sea level rises. This type of man-made barrier also has implications for the natural coastline.
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French Sea Wall

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The Portage Glacier near Anchorage, Alaska has retreated so much that it is no longer visible from the visitor center built for its viewing in 1986.
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Portage Glacier

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A map of sea level change in cm from 1993 to 2008.
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Sea Level Rising

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An iceberg calves from Antarctica's Pine Island Glacier
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Pine Island Glacier

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An Autonomous Reef Monitoring Structure (AMRS) placed on a reef in Bali.
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Biodiversity in Bali

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Seagrass species come in many different shapes and sizes, as illustrated by this conceptual diagram of some common seagrass species.
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Seagrass Diversity

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The Mesoamerican Reef extends over 600 miles (1000 km) through the waters of Mexico, Belize, Guatemala and Honduras and includes the Western Hemisphere’s longest barrier reef.
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Mesoamerican Reef Regional Map

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Blue mussels use byssus threads (which you can see on the right, in front of the barnacle shell) to attach to rocks and sometimes to stop a predator from making them a meal.
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Byssus Threads on a Blue Mussel

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