Photo of the Day

Picture of colorful corals in Australia's Great Barrier Reef
June 8, 2021

Colorful Coral

Hard corals in the Great Barrier Reef vie for sunlight off the coast of Cairns, Australia. More than half of the reef's corals have died since 1995, due to climate change and warming seas.
Photograph by David Doubilet, Nat Geo Image Collection
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