Sonke Johnsen

Professor of Biology

301 Bio Sci Bldg, Durham, NC 27708
Campus Box: 
Duke Box 90338, Durham, NC 27708-0338
(919) 660-7321


  • Ph.D., University of North Carolina - Chapel Hill 1996

  • B.A., Swarthmore College 1988

Johnsen, S., and E. A. Widder. “The physical basis of transparency in biological tissue: Ultrastructure and the minimization of light scattering.” Journal of Theoretical Biology 199, no. 2 (July 21, 1999): 181–98. Full Text

Johnsen, S., E. J. Balser, and E. A. Widder. “Light-emitting suckers in an octopus.” Nature 398, no. 6723 (March 11, 1999): 113–14. Full Text

Johnsen, S., E. J. Balser, E. C. Fisher, and E. A. Widder. “Bioluminescence in the deep-sea cirrate octopod Stauroteuthis syrtensis verrill (Mollusca: Cephalopoda).” Biological Bulletin 197, no. 1 (January 1, 1999): 26–39. Full Text

Johnsen, S., and E. A. Widder. “Transparency and visibility of gelatinous zooplankton from the Northwestern Atlantic and Gulf of Mexico.” Biological Bulletin 195, no. 3 (January 1, 1998): 337–48. Full Text

Johnsen, S., and W. M. Kier. “Damage due to solar ultraviolet radiation in the brittlestar Ophioderma brevispinum (Echinodermata: Ophiuroidea).” Journal of the Marine Biological Association of the United Kingdom 78, no. 2 (January 1, 1998): 681–84. Full Text

Johnsen, S. “Extraocular sensitivity to polarized light in an echinoderm.The Journal of Experimental Biology 195 (October 1994): 281–91.

Kauffman, S. A., and S. Johnsen. “Coevolution to the edge of chaos: coupled fitness landscapes, poised states, and coevolutionary avalanches.Journal of Theoretical Biology 149, no. 4 (April 1991): 467–505. Full Text