More from Debora Mackenzie
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Health
Folic acid supplements rejuvenate older brains
News
Health
Hybrid flu virus in near-miss escape
News
Humans
Beauty is in the eye of your friends
News
Health
Bird flu epidemic rumbles on around the world
News
Health
Milk wrecks the health benefits of tea
News
Life
Moths drink the tears of sleeping birds
News
Life
Big Fleas Have Little Fleas, by Elizabeth Davidson
Books & Arts
Earth
Review 2006: Fish numbers plummet
News
Health
New vCJD scare rocks the UK
News
Life
Eels and groupers hunt better together
News
Health
Blame bird flu on wild birds 鈥� and poultry too
News
Life
Sexy fertile stags sire more sons
News