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Rescuers dig for life after US tornado kills 24
Families returned to a blasted moonscape that had been an American suburb Tuesday after a monstrous tornado tore through the outskirts of Oklahoma City, killing at least 24 people. ... more
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Study: Penguins made evolutionary 'choice' of swimming over flying
British researchers say they've solved the puzzle of why penguins can't fly: Their survival hinged on swimming underwater not soaring in the air. ... more
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Dubai seizes 259 smuggled African ivory tusks
A shipment of 259 elephant tusks smuggled out of Africa has been seized in the United Arab Emirates, the International Wildlife Fund for Animal Welfare said Tuesday. ... more
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Amazon plans greenhouse-style headquarters
US online giant Amazon has unveiled plans for a futuristic greenhouse style headquarters "where employees can work and socialize in a more natural, park-like setting." ... more
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