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Put down that pint and go diving off the coast of Ireland. See the underwater surprises that await you in this multimedia feature.
Watch sea anemones, sponges, and coral in a slow-motion turf battle in the nutrient-rich waters of California's Monterey Bay.
Go 12,000 feet (3,657 meters) deep in the ocean off California and see orange-tinted sea anemones awaiting a hapless victim.
The sting of a green anemone—seen here in the waters of the Channel Island National Marine Sanctuary in California—is harmless to humans.
Dive down into the diversity of life in California's Monterey Bay National Marine Sanctuary.
Check out the local hotspots with downloadable city guides.
Explore nine classic walks all across America.
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It's no stretch to find fun facts on our Kids site!
Get an eye-opening warning of the dangers of climate change, one degree at a time.