High protein diet may harm polar bears

A high protein diet appears linked to kidney disease and shortened lifespans for captive polar bears, a relationship similarly suspected in humans, according to a review led by Washington State University wildlife biologist ...

Fullerene spheres can be used to slide in the nanoworld

"Nano–machines" (around one billionth of a metre in size) of the future will need tiny devices to reduce friction and make movement possible. The C60 molecule, also known as fullerene or buckyball, seemed to many an excellent ...

Biggest North Pole mission back from 'dying Arctic'

Researchers on the world's biggest mission to the North Pole returned to Germany on Monday, bringing home devastating proof of a dying Arctic Ocean and warnings of ice-free summers in just decades.

Australian 'Dumb Ways to Die' safety clip goes viral

An online video featuring cartoon creatures killing themselves in a variety of ways as part of an Australian transport safety campaign has gone viral, with almost 12 million YouTube views in a week.

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