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Polarization vision helps detect transparent prey


Transparency enables aquatic organisms to avoid detection by visual predators. But we have found that this camouflage can be broken using a visual mode evolved by several predators, such as squid. Under partially linearly polarized lighting, squid detect zooplankton prey at a distance 70% greater than those achieved under non-polarized illumination. The role of polarization sensitivity in predation is confirmed by squid's preference for transparent, yet polarization-active, targets that mimic their prey.

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Figure 1: Adult squid choices of glass beads that mimicked prey.


  1. Nilsson, D. E. in Zooplankton: Sensory Ecology and Physiology (eds Lenz, P. H, Hartline, D. K, Purcell, J. E.& Macmillan, D. L.) 149-162 (Gordon and Breach, Amsterdam, 1996).

  2. Hull, P. G., Hunt, A. J., Quinby-Hunt, M. S. & Shapiro, D. . Underwater Imaging, Photography, and Visibility. Soc. Photo-Optical Instrumentation Engineers Proc. Series 1537, 21–29 (1991).

    Book  Google Scholar 

  3. Oldenbourg, R. & Mei, G. J. Microsc. 180, 140–147 (1995).

    Google Scholar 

  4. Waterman, T. H. & Westell, W. E. J. Mar. Res. 15, 149–169 (1956).

    Google Scholar 

  5. Fineran B. A. & Nicol, J. A. C. Phil. Trans. R. Soc. Lond. B 283, 25–60 (1978).

    Google Scholar 

  6. Saidel, W. M., Lettvin, J. Y. & McNichol, E. . Nature 304, 534–536 (1983).

    Google Scholar 

  7. Vovk, A. N. Les. Trudy Atl. Nauchno-Issled Inst. Rybn. Khoz. Okeanogr. 42, 141–151 (1974).

    Google Scholar 

  8. Hanlon, R. T., Turk, P. E., Lee, P. G. & Yang, W. T. Fish. Bull. 85, 163–167 (1987).

    Google Scholar 

  9. Cronin, T. W., Shashar, N. & Wolff, L. Portable imaging polarimeters. Proc. 12th Int. Congr. Pattern Recognition 606-609 (1994).

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Shashar, N., Hanlon, R. & Petz, A. Polarization vision helps detect transparent prey. Nature 393, 222–223 (1998).

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