Word: kukalov
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...Cambrian explosion, then, may mark not the invention of new hardware, but rather the elaboration of new software that allowed existing genes to perform new tricks. Unusual-looking arthropods, for example, might be cobbled together through variations of the genetic software that codes for legs. "Arthropods," observes paleoentomologist Jarmila Kukalov-Peck of Canada's Carleton University, "are all legs" - including the "legs" that evolved into jaws, claws and even sex organs...
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