Today marks the second-ever World Reef Day, an observance created to help focus global attention on the deteriorating health of our planet"s vital reef systems, and also to help marshal efforts to help them recover. Why should we care about the health of ecosystems such as the Great Barrier Reef, seen in this photo? Because reefs are an easy indicator of how healthy our oceans are. And right now, reefs aren"t doing too well. What can we do? Learn about reefs—not just the dangers that put healthy reefs at risk, but why reefs are such a critical part of Earth"s greater ecosystems.
The largest living organism on Earth
Today in History
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Trunks stick together
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Stepping into autumn
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Toledo, Spain
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This grizzly has Napping Day down
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We did not invent this, honest
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International Day for Biological Diversity
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High seas commerce
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It s Independence Day in Mexico
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Cousins Day
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Tree of many colors
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Whatever floats your boat
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Pollinator Week
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Marine Day in Japan
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National Go Birding Day
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Okefenokee Swamp
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Spring equinox
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Cinco de Mayo
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World Space Week
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Light show at the skatepark
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Spotted owlet, Bangkok, Thailand
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Dragon dance performed in Chenzhou, Hunan Province, China
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Paradise Cave, Phong Nha-Ke Bang National Park, Vietnam
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Ceremony Hall at Sweden s Icehotel
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Autumn in the cypress swamp
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Night view of the RMS Queen Mary, Long Beach, California
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Great wildebeest migration at Mara River, Kenya
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National Blueberry Day
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A river runs through it
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Burns Night in Scotland
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Málaga, Spain
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