Special News ReportBiology

Crab Legs and Lobster Claws

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Science  04 Jul 1997:
Vol. 277, Issue 5322, pp. 36
DOI: 10.1126/science.277.5322.36

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From the microscopic water flea to the tasty Alaskan king crab, crustaceans owe much of their success to the number and variety of their legs. New developmental studies show that a seemingly simple change in where two genes are expressed may be responsible for some of this diversity.