BBC
Buenos Aires to shut scandal-prone zoo
The mayor of Buenos Aires announces his administration has taken over the running of the city's zoo after a series of scandals.
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Scientists hungry to deliver food system paradigm shift
Eight universities across northern England join forces to form a scientific powerhouse at the launch of a five-year, £16m global food research programme.
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Rise of border fences hampers wildlife movements
The growth of border fences in Central and Eastern Europe in recent years is a "major threat" to wildlife, according to a new study.
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Frog rescue: Last hope for endangered amphibian
How a shipping container became a last sanctuary for one of the world's most endangered amphibians, the mountain chicken frog.
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Solar Impulse on track for Seville landing
The zero-fuel aeroplane, Solar Impulse, is aiming to complete its Atlantic crossing on Thursday with a landing in Seville.
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Diesels more polluting below 18C, research suggests
Pollution from many popular diesel cars is much worse when it is colder than 18C outside, new research suggests.
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'Last breath'
In June 1997, astronauts on the Russian space station Mir faced disaster after the worst collision in the history of manned space flight.
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Warmer winters play important role in EU emissions drop
Milder winters have contributed to a significant drop in greenhouse gas emissions across the EU over the past quarter of a century.
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Tim Peake: 'I saw flames outside the window'
British astronaut Tim Peake describes his dramatic journey home to Earth from the International Space Station.
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Peake: 'I would return to space in a heartbeat'
Tim Peake says he would go back into space "in a heartbeat" after his six-month mission to the space station.
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Iceland's fishing industry 'better off outside' EU
Iceland's fishing minister says the country would "never join the European Union" because the industry is thriving outside the bloc.
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New crop varieties 'can't keep up with global warming'
Temperatures around the world are rising faster than scientists can develop varieties that can cope with a warmer world, according to a new study.
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How early mammals evolved night vision to escape dinos
Night-time vision evolved millions of years ago in early mammals, a study suggests.
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Project re-ignited
Andy Green says a new source of funding means preparations to run the Bloodhound 1,000mph supersonic car in South Africa next year can resume.
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China builds world's most powerful computer
The 93 petaflop Sunway TaihuLight in China has topped a newly published list of supercomputers.
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Solar Impulse sets off on 90-hour Atlantic crossing
Solar Impulse 2 sets off from New York to cross the Atlantic, one of the toughest stages of its attempt to fly around the globe using solar energy.
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British astronaut Tim Peake's 'incredible experience'
British astronaut Tim Peake has said he is elated to be back on earth after six months onboard the international space station.
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President Obama in Yosemite: 'Climate change is a reality'
President Barack Obama draws attention to the dangers of climate change while on a visit to Yosemite National Park in California.
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UK astronaut returns: The moment Peake fell to Earth
Footage shows the descent of UK astronaut Tim Peake and two other crew members as they touched down in Kazakhstan.
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UK astronaut Tim Peake returns to Earth
UK astronaut Tim Peake is safely back on Earth after a historic mission to the International Space Station.
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