●A nucleolar disappearing act in somatic cloning. Misteli, T. Nature Cell Biology March (2003). In this News and Views, the molecular mechanisms of nucleolar disassembly and its implications for nucleolar architecture are discussed.

●Special issue on Cognitive Neuroscience.Nature Reviews Neuroscience March (2003).

●Dying for a cause: invertebrate genetics take on human neurodegeneration. Driscoll, M. & Gerstbrein, B. Nature Reviews Genetics March (2003).

●Tracing floral adaptations from ecology to molecules. Clegg, M. T & Durbin, M. L. Nature Reviews Genetics March (2003).

●ATM and related protein kinases: safeguarding genome integrity. Shiloh, Y. Nature Reviews Cancer March (2003).

●A magnificent machine. Vallee, R. B. & Höök, P. Nature 13 February (2003). News and Views piece describing new computer-averaged electron-micrograph images of dynein at two stages of its force-production cycle.

●RecQ helicases: caretakers of the genome. Hickson, I. D. Nature Reviews Cancer March (2003). Mutations in RecQ helicases lead to the cancer-predisposing disorders Bloom's syndrome and Werner's syndrome.

●Cox-2 inhibitors. Flower, R. J. Nature Reviews Drug Discovery March (2003).

●Special issue on Regulatory Lymphocytes.Nature Reviews Immunology March (2003). A collection of articles exploring the diversity of regulatory T cells and their in vivo functions, as well as their potential applications in autoimmunity and transplantation, including:

●Regulatory T cells under scrutiny. Bach, J.-F.

●Janus-like role of regulatory iNKT cells in autoimmune disease and tumour immunity. Wilson, S. B. & Delovitch, T. L.

●Regulatory T cells in transplantation tolerance. Wood, K. J. & Sakaguchi, S.

●Antigen-induced regulatory T cells in autoimmunity. Von Herrath, M. G & Harrison, L. C.