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As ocean temperatures rise globally, the search for individual coral genotypes that are currently able to survive environmental extremes becomes more critical. Certain corals in Guam inhabit more thermally variable shallow reef flats than their…

Types of Latte Stones on Guam: Uruno (coral); Talofofo River (copal); Tumon Bay (coral); Talofofo River (hard island rock)

A vivid demonstration of the ‘upheaval’ which caused the formation of Guam, these coral formations are now high and dry above sea level. Photograph was taken near Talofofo Bay by Benjamin C. Stone

This week’s issue’s Table of Contents

WHILE WE’RE ON THE SUBJECT – Strange things happened underwater to create the island of Guam, as Author Paul B. Souder explains in his article on page 18. And as demonstrated here, weird tings happen to islands after they’ve been formed. This coral…

Dump truck hauling coral boulders on the glass breakwater.

"Coral" Exposed rock formation undercut by wave action.

Inspection, Harmon Field. Coral pit in background.