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Friday, 23 February, 2001, 10:13 GMT
AUDIO/VIDEO

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Asteroid 'destroyed life 250m years ago'
The Earth's largest mass extinction was caused by the impact of an asteroid or comet say scientists.

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Asteroid 'destroyed life 250m years ago'
The Earth's largest mass extinction was caused by the impact of an asteroid or comet say scientists.

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Links to other AudioVideo sections
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  Euro: The great debate
  Foot-and-mouth: BBC coverage
  American Science expo
  London Fashion Week
Europe special
With Foreign Secretary Robin Cook, Shadow Foreign Secretary Francis Maude & Lib Dem Baroness Shirley Williams
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In business
What is happening in Scottish boardrooms after devolution
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Farming Today
A special report on the foot-and-mouth disease outbreak
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War Crimes Tribunal
The international court gives its verdicts on Bosnian Serbs charged with rape
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Full list of programmes is at the foot of the page.
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Chechnya
Russia steps up security fearing new reprisals
Fashion Week
How designers use famous faces to help promote their clothes
Zimbabwe
Mugabe renews attack on white minority
Doggy doorbell
No more barking at the back door
Inimitable Eminem
US rapper wins three Grammys and performs with Elton John
Scaling the heights
Making opera more popular in UK schools
Biting times
Shark population under threat due to illegal killings
Aborigines
Race likely to be a key election issue in Australia
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