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'Molar Berg' does a quick Antarctic pirouette

Emperor penguin 'needs greater protection'

315 billion-tonne iceberg breaks off Antarctica

World's biggest iceberg is on the move

The twists and turns of Iceberg A68. Video, 00:00:20The twists and turns of Iceberg A68

What happened to Halley Bay's penguins? Audio, 00:05:39What happened to Halley Bay's penguins?

Thousands of penguin chicks wiped out

'No role' for climate in Halley iceberg

Drilling climate history in 'Iceberg Alley'

Iceberg water missing in apparent heist

Mission to visit uncovered ice ecosystem

World's biggest iceberg drifts north. Video, 00:00:23World's biggest iceberg drifts north

Giant iceberg: The life uncovered. Audio, 00:03:58Giant iceberg: The life uncovered

Expedition targets Shackleton's lost ship

Expedition investigates Larsen Ice Shelf. Audio, 00:06:17Expedition investigates Larsen Ice Shelf

Nasa shares close-up photos of big berg

Nasa photographs rectangular iceberg

The last chance to see the Titanic?

Monster iceberg's pivot and turn

Monster iceberg's pivot and turn. Video, 00:00:37Monster iceberg's pivot and turn

Iceberg threatens Greenland village. Video, 00:00:51Iceberg threatens Greenland village

Huge iceberg threatens Greenland village

The 'monster' berg: What happened next?