Daily Archives: November 28, 2017

Birds with poor digestion are literally off colour

Mr and Mrs House-Finch THE vibrant hues of beautiful plumage are often borrowed. Flamingos, for example, owe their pinkness to chemicals called carotenoids that are made by bacteria known (confusingly) as blue-green algae. The birds, when feeding, both ingest these bacteria directly and consume small crustaceans that themselves subsist on such bacteria. Blue-footed boobies obtain their eponymous colour similarly, via ...

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China’s bicycle-sharing giants are still trying to make money

Shades of cycling joy STEVE JOBS liked to describe computers as “bicycles for the mind”—tools that let humans do things faster and more efficiently than their bodies would allow. The internet-connected bikes flooding the streets of urban China could be called “computers for the road”. Networked, trackable and data-generating, they are ones and zeros in aluminium form. The cycles belong ...

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