Miniature cameras have given scientists a rare glimpse into how New Caledonian crows behave in the wild. The birds are renowned for their sophisticated tool-using ability, but until now, observing them in their natural habitat has proven difficult.
But specially designed "crow-cams" fitted to the birds' tails have shed light on the creatures, recording some tool-use never seen before.
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Environment & Nature
Captive breeding 'weakens' beasts
Animals bred in captivity to help conservation programmes can quickly become less fit for survival in the wild, research suggests. US scientists found steelhead trout reared in hatcheries were much less good at reproducing than wild fish.
Writing in the journal Science, they say the use of captive breeding needs careful re-consideration.
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Writing in the journal Science, they say the use of captive breeding needs careful re-consideration.
Japanese probe enters lunar orbit
Japan's lunar explorer has successfully entered orbit around the Moon, space agency officials have said. The Kaguya orbiter was launched in August from Japan's space base on the southern island of Tanegashima.
It will deploy two smaller satellites and, over a year, gather data on the Moon's origin and evolution.
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It will deploy two smaller satellites and, over a year, gather data on the Moon's origin and evolution.
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