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oceans

True's beaked whale

Life

First-ever underwater video of the elusive True's beaked whale

The deep-water whale spends most of its life on hour-long dives kilometres below the ocean surface. The new footage is a step towards understanding them better

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Deepwater Horizon oil spill

Earth

Sponge can soak up and release spilled oil hundreds of times

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Haematite tubes protrude from red background

Earth

Traces in rock may be the oldest evidence of life on Earth ever

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Extinct squid relative

Life

Squid evolved in marine wars more than 100 million years ago

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Seagrass with sea surface above

Life

Seagrass meadows help remove dangerous bacteria from ocean water

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cock-eyed squid

Life

Deep-sea squid points a big, bulging eye up and a tiny eye down

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Volunteers attending to stranded whales in New Zealand, 10 February 2017

Life

400 pilot whales stranded on New Zealand’s ‘whale trap’ beach

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measuring stick

Earth

Everest is not the world's tallest mountain – and here's why

Features

Some of the turfwinkle snails in their natural habitat

Earth

Ocean acidification may be good for thriving marine snails

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A vaquita caught in a net

Life

World’s most endangered marine mammal has 30 individuals left

The vaquita porpoise lives in the Gulf of California, Mexico, where illegal fishing with gill nets has slashed the population by a total of 90 per cent in the past five years

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Earth

The video installation that makes us swim in our own mess

Culture

Earth

Long-lost continent found submerged deep under Indian Ocean

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Life

We don't need a huge blue grab to save sharks and rays

Comment

Earth

Planet Earth makes its own water from scratch deep in the mantle

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