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These bleached corals in the Gulf of Mexico are the result of increased water temperatures.
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Bleached Corals

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“It was shaping up to be a bad night dive when my mask broke and I was forced to come up early. The others continued diving and I was becoming a bit bored at the surface when I suddenly spotted some grey reef sharks hunting in the light of our ship. I to
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Grey Reef Shark, West New Britain, Father Reefs, Papua New Guinea

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

Making Science Sing: The Longest Time (Coral Triangle Edition)

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A screenshot from the video of Nancy Knowlton on PBS NewsHour.
Video

Where did Half of the Great Barrier Reef's Coral Go?

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Fish swimming in waters of Bay Islands, Honduras
Article

Improving Grades for the Mesoamerican Reef

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Large numbers of grey reef sharks were observed at Jarvis Island, an uninhabited Pacific island, during the 2010 Pacific RAMP expedition of the NOAA Ship Hi'ialakai.
Article

Reef Sharks Repelled by People

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Two nurse sharks hover over a baited cage
Lesson Plan

Corrosion to Corals

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Two nurse sharks hover over a baited cage
Lesson Plan

Fish Feeding

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Caribbean reef sharks swim over a coral reef in the Bahamas.
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Caribbean Reef Shark

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Compare the healthy coral on the left with the bleached coral on the right.
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Bleached Corals, Pacific Ocean

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A piece of the Institute For Figuring’s Hyperbolic Crochet Coral Reef known as the Ladies Silurian Atoll.
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Ladies Silurian Atoll from the Hyperbolic Crochet Coral Reef

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Coral scientist Dr. Amy Baco-Taylor observed corals like these on her first submarine dive to a deep-sea coral bed off the coast of Hawaii.
Overview

Deep-sea Corals

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