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Nature has been redesigned. It is to be hoped that this development, and others introduced in this issue, will enhance not only the publication's value but also its capacity to divert.
Fourteen cases of new-variant Creutzfeldt–Jakob disease have so far been confirmed in the United Kingdom. Are they the start of an epidemic? If so, how informative will cases in the next few years be in predicting its course?
According to a 'law' formulated by E. D. Cope in 1871, the body size of organisms in a particular evolutionary lineage tends to increase. But Cope's rule has failed the most comprehensive test yet applied to it.
Neurons and their networks underlie our perceptions, actions and memories. The latest work on information processing and storage at the single-cell level reveals previously unimagined complexity and dynamism.