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Science 23 December 2005:
Vol. 310. no. 5756, pp. 1892 - 1893
DOI: 10.1126/science.310.5756.1892b
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News of the Week

IMMUNOLOGY:
Jawless Fish Have Form of Adaptive Immunity

Mary Beckman

It appears that evolutionarily distinct immune systems have exploited a similar genetic trick to battle microbes. New research on page 1970 reveals that the immune defenses of jawless fish such as lampreys generate as much diversity as the system used by organisms from sharks onward in evolution. (read more.)

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Science. ISSN 0036-8075 (print), 1095-9203 (online)