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The Future of the Orang-utan
"Without trees there are no orang-utans and without orang-utans there are no trees"
"Orang-utans need trees. They are a totally arboreal animal. Without trees there are no orang-utans and without orang-utans there are no trees because they act as seed dispersers."
Also on the programme have we tamed too many rivers? And China's worsening air quality.
Picture: Young orang-utan, Credit: Getty Images
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How We Saw the Future in the Past—BBC World Service Archive
Back in 1995 we thought we would see conflict without bloodshed.