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Marine iguanas shrink to survive El Niño

Changes in bone metabolism enable these adult lizards to reversibly alter their length.

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Figure 1
Figure 2: Change in body length as an adaptation to harsh conditions.


  1. Andrews, R. M. in Biology of the Reptilia Vol. 13 (eds Gans, C. & Pough, F. H.) 273–320 (Academic, London, 1982).

    Google Scholar 

  2. Wikelski, M. & Trillmich, F. Evolution 51, 922–936 (1997).

    Article  Google Scholar 

  3. Wikelski, M., Carrillo, V. & Trillmich, F. Ecology 78, 2204–2217 (1997).

    Article  Google Scholar 

  4. Wikelski, M. & Trillmich, F. Behaviour 128, 255–279 (1994).

    Article  Google Scholar 

  5. Wolter, K. & Timlin, M. S. Weather 53, 315–324 (1998).

    Article  ADS  Google Scholar 

  6. Laurie, W. A. in Global Ecological Consequences of the 1982–83 El Niño Southern Oscillation (ed. Glynn, P.) 121–141 (Elsevier, Amsterdam, 1989).

    Google Scholar 

  7. Grant, P. R. Ecology and Evolution of Darwin's Finches (Princeton Univ. Press, New Jersey, 1986).

    Google Scholar 

  8. Cooper, J. E. & Laurie, W. A. J. Comp. Pathol. 97, 129–136 (1987).

    Article  CAS  Google Scholar 

  9. Laurie, W. A. & Brown, D. J. Anim. Ecol. 59, 545–568 (1990).

    Article  Google Scholar 

  10. Jarman, P. J. & Sinclair, A. R. E. in Serengeti: Dynamics of an Ecosystem (eds Sinclair, A. R. E. & Norton-Griffith, M.) 130–163 (Univ. Chicago Press, 1979).

    Google Scholar 

  11. Enlow, D. H. in Biology of the Reptilia Vol. I (eds Gans, C. et al.) 45–80 (Academic, London, 1969).

    Google Scholar 

  12. Grigoriev, A. I. et al. Aviakosm. Ekolog. Med. 32, 21–25 (1998).

    CAS  PubMed  Google Scholar 

  13. Strollo, F. et al. Aviat. Space. Environ. Med. 69, 777–780 (1998).

    CAS  PubMed  Google Scholar 

  14. Wronski, T. J. & Morey, E. R. Metab. Bone Dis. Relat. Res. 4, 69–75 (1982).

    Article  CAS  Google Scholar 

  15. Mundy, G. R. Nature 367, 216–217 (1994).

    Article  ADS  CAS  Google Scholar 

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Wikelski, M., Thom, C. Marine iguanas shrink to survive El Niño. Nature 403, 37–38 (2000).

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