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Two nurse sharks hover over a baited cage
Lesson Plan

Sea Surface Temperature and Coral Bleaching

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

Bleached Corals

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This orange boring sponge (Cliona varians) overgrows several coral species at Panama's Smithsonian Tropical Studies Institute.
Article

Ocean Acidification Excites Boring Sponges

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Compare the healthy coral on the left with the bleached coral on the right.
Photo

Bleached Corals, Pacific Ocean

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UV light illuminates growth rings in a cross-section of 44-year-old Primnoa resedaformis coral found about 400 m (1,312 ft) deep off Newfoundland.
Photo

Coral Growth Rings

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An underwater photo of coral recovering from a bleaching event.
Article

A Pleasant Surprise: The Recovery of Bleached Panamanian Corals

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A shell placed in seawater with increased acidity slowly dissolves over 45 days.
Overview

Ocean Acidification

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