Oceans

Rare argonaut octopus washes ashore

Is this seaweed the magical bacon unicorn of vegetables?

Now we know the reason for the narwhal's tusk

Lost Irish beach returns after 33 years

Bizarre clam video weirds out the internet

Obama's national monuments are a big deal

The Arctic is a 'dead end' for ocean plastic

London sculpture spotlights the deadly relationship between seabirds and plastic

These tiny fish use their venom to kill ... pain

Where are Earth's largest nature reserves?

Take a dive to see the remains of the Titanic

Glowing blue algae lights up Tasmanian bay

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