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Art 01 Mar 10 A small display of Tolkein's original artwork and manuscripts will be on display Thursday, 4 March The Bodleian Library is taking part in World Book Day 2010 by exhibiting a selection of JRR Tolkien's original artwork which was used to illustrate . A unique manuscript of Hobbit doodles and a rare first edition of the book will also be on display.

Science | Health Jonathan Wood Images of the brain with various areas 'lighting up' in a rainbow of colours are now pretty familiar to many of us. These come from studies in which people are given tasks to do inside MRI scanners, and the areas that light up show where there is increased brain activity as a result.

Trails found in rocks dating back 565 million years are thought to be the earliest evidence of animal locomotion ever found. The newly-discovered fossils, from rocks in Newfoundland in Canada, were analysed by an international team led by Oxford University scientists. They identified over 70 fossilised trails indicating that some ancient creatures moved, in a similar way to modern sea anemones, across the seafloors of the Ediacaran Period.

The antivirals oseltamivir (Tamiflu) and zanamivir (Relenza) are unlikely to prevent complications in children who have swine flu, according to research published by the BMJ today. While the study shows that antivirals shorten the duration of flu in children by up to a day and a half, it also shows that they have little or no effect on asthma flare-ups, increased ear infections or the likelihood of children needing antibiotics.

There is an association between schizophrenia and violent crime, but it is minimal unless there are also drug or alcohol problems, a large-scale study led by Oxford University has shown. The findings, reported in the Journal of the American Medical Association, highlight the importance of treating drug or alcohol problems in people with severe mental illness.

Young adults with a genetic variant that raises their risk of developing Alzheimer's disease show changes in their brain activity decades before any symptoms might arise, according to a new brain imaging study by scientists from the University of Oxford and Imperial College London. The results may support the idea that the brain's memory function may gradually wear itself out in those who go on to develop Alzheimer's.

A new analysis of almost one million people from around the world has shown that obesity can trim years off life expectancy. The Oxford University research found that moderate obesity, which is now common, reduces life expectancy by about 3 years, and that severe obesity, which is still uncommon, can shorten a person's life by 10 years.

Researchers have found evidence that a direct interaction between vitamin D and a common genetic variant alters the risk of developing multiple sclerosis (MS). The Oxford University-led research, published in PLoS Genetics, suggests that vitamin D deficiency during pregnancy and the early years may increase the risk of offspring developing MS later in life.