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Researchers have discovered a pair of twins who are identical through their mother’s side, but share only half their genes on their father’s, reports a News Exclusive from news@nature.com.

Read more of the article entitled ' ‘Semi-identical’ twins discovered'

Summaries of newsworthy papers published in Nature Journals online on 25 March 2007 including: Too much of a good thing?, Protein sensing in full colour, Next-generation glass, The shape of drugs to come, Genetic variant associated with susceptibility to osteoarthritis, Brain cells seen in context.

Read more of the article entitled 'Biodiversity: Too much of a good thing?'

Materials: Brute force yields new molecules, Neuroscience: Emotion and moral judgements, Earth sciences: Ocean crust formation, Geology: The driving force of plate tectonics, Organic chemistry: Unprotected complexity, Evolutionary ecology: Understanding evolutionary bursts

Read more of the article entitled 'How to make vitamin B12'

Teen smokers who were also exposed to nicotine before birth show a dramatic reduction in attention capacities related to vision and hearing. The study also demonstrates that male and female attention capacities are affected by the exposure in different ways.

Read more of the article entitled 'Developmental nicotine exposure diminishes attention capacity'

Summaries of newsworthy papers in Nature journals online on 18 March 2007 including Understanding cancer spread, Spawn of hag, and Reversing the magnetic vortex core.

Read more of the article entitled 'Understanding cancer spread, Spawn of hag, and Reversing the magnetic vortex core'