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A surprising drug has brought a kind of consciousness to patients once considered vegetative — and changed the debate over pulling the plug. 
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CT scans of cadavers could make some autopsies unnecessary, British team suggests...
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Virtually all organisms with complex cells—better known as eukaryotes—have at least two separate genomes. The main one sits in the central nucleus. There’s also a smaller one in tiny bean-shaped structures called mitochondria, little batteries that provide the cell with energy. Both sets of genes must work together. Neither functions properly without the other.
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Male nursery web spiders (Pisaura mirabilis) prepare silk-wrapped gifts to give to potential mates.
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A Silicon Valley start up has created a social networking sight not for the living, but for the dead. The service allows the living "to build their own virtual memorial, leave posthumous messages, and organise their affairs for the day they depart. It even lets the account holder send messages to the living long after he or she has shuffled off this mortal coil."
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The World Health Organisation warned on Saturday that only a stronger political commitment to child health could prevent a dangerous rise in mortality rates at a time of global economic turmoil.
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Life is full of choices, not only for people but also for the cells that we’re made of. Scientists in Manchester are studying a simple life form to uncover the basis of cells’ choices, as Michael Regnier reports.
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A report commissioned by the Royal Society of Canada, and published today in the journal Bioethics, claims that assisted suicide should be legally permitted for competent individuals who make a free and informed decision, while on both a personal...
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If humans became immortal, the species would be at a biological disadvantage, says evolutionary biologist Andre Martins of Brazil's University of Sao Paolo. In a computer simulation which pits an immortal species against one which prunes its population, the species that grows old "can drive immortal competitors to extinction," writes Martins. "This counter-intuitive result arises from the pruning caused by the death of elder individuals. When there is change and mutation, each generation is slightly better adapted to the new conditions."
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The experiences aren't paranormal, but are manifestations of brain function gone awry, says research.
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