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10

"Magnetic cows" are visible from space

sea-maid submitted, created time 4 months 1 week (www.nature.com)

Despite thousands of years of coexistence, exploitation and cheese, humanity seems to have missed an intriguing fact about cows: they like to point north. Or possibly south. After some exploration, it was found that other animals, such as deer, do this too.

Researchers have explored the matter and found that the ruminants are aligning themselves to magnetic north, not true north. In other words, this is about the magnetic field, not maximizing heat from the sun or getting out of the wind.

8

Bluetongue spreads despite vaccinations

sea-maid submitted, created time 5 months 1 week (www.newscientist.com)

BLUETONGUE is back. It has survived another winter in northern Europe, and now farmers are vaccinating livestock in a race against the biting midges that carry the virus.

The first cases of the disease, which affects ruminants, began to surface this month, with France so far reporting 260. Most are located along the front line of last year's outbreaks, suggesting that the epidemic is spreading into new territory despite France's compulsory vaccination policy.

In England, voluntary vaccination has been rolled out across the country from the south-east, where bluetongue arrived last year

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