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Nature 391, 129-130 (8 January 1998) | doi:10.1038/34306

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Insect physiology:  Caterpillars have lungs

Peter J. Mill1

For the past 350 years1, it has been the perceived wisdom that air is distributed to insect tissues through a series of branched tubes called tracheae and tracheoles, the main branches of the tracheae opening to the outside world at a series of segmentally arranged openings called spiracles. But a paper in the latest issue of the Journal of Insect Physiology2 gives us cause for a rethink.

  1. Peter J. Mill is in the School of Biology, University of Leeds, Leeds LS2 9JT, UK.
    e-mail: Email: p.j.mill@leeds.ac.uk